Source Code

;; ZeroTrace Identity Protocol
;; A privacy-first decentralized identity system enabling anonymous verification,
;; reputation management, and group participation through zero-knowledge proofs
;; and cryptographic commitments while maintaining complete user anonymity.

;; ERROR CODES & VALIDATION CONSTANTS

(define-constant contract-deployer tx-sender)
(define-constant ERR-UNAUTHORIZED-ACCESS (err u100))
(define-constant ERR-IDENTITY-ALREADY-EXISTS (err u101))
(define-constant ERR-IDENTITY-NOT-FOUND (err u102))
(define-constant ERR-INVALID-CRYPTOGRAPHIC-COMMITMENT (err u103))
(define-constant ERR-VERIFICATION-PROCESS-FAILED (err u104))
(define-constant ERR-INSUFFICIENT-REPUTATION-SCORE (err u105))
(define-constant ERR-INVALID-ZERO-KNOWLEDGE-PROOF (err u106))
(define-constant ERR-COMMITMENT-EXPIRED (err u107))
(define-constant ERR-ALREADY-VERIFIED-IDENTITY (err u108))
(define-constant ERR-INVALID-INPUT-PARAMETERS (err u109))
(define-constant ERR-REPUTATION-SYSTEM-LOCKED (err u110))
(define-constant ERR-GROUP-ACCESS-DENIED (err u111))

;; System Configuration Constants
(define-constant minimum-reputation-threshold u10)
(define-constant maximum-reputation-ceiling u1000)
(define-constant verification-challenge-timeout u144) ;; ~24 hours in blocks
(define-constant commitment-expiration-period u1008) ;; ~1 week in blocks
(define-constant initial-reputation-grant u100)
(define-constant maximum-interaction-types u10)
(define-constant maximum-challenge-types u5)
(define-constant maximum-proof-types u10)

;; ===========================================
;; CORE DATA STRUCTURES
;; ===========================================

;; Primary anonymous identity registry
(define-map anonymous-identity-registry
  { identity-cryptographic-hash: (buff 32) }
  {
    privacy-commitment: (buff 32),
    current-reputation-score: uint,
    verification-trust-level: uint,
    identity-creation-timestamp: uint,
    most-recent-activity-timestamp: uint,
    identity-active-status: bool,
    encrypted-metadata-hash: (optional (buff 32))
  }
)

;; Private ownership mapping (hidden from public queries)
(define-map identity-ownership-registry
  { account-principal: principal }
  { 
    owned-identity-hash: (buff 32), 
    ownership-establishment-timestamp: uint 
  }
)

;; Verification challenge management system
(define-map verification-challenge-registry
  { unique-challenge-identifier: (buff 32) }
  {
    target-identity-hash: (buff 32),
    challenge-initiator-principal: principal,
    verification-challenge-category: uint,
    challenge-cryptographic-commitment: (buff 32),
    challenge-creation-timestamp: uint,
    challenge-resolution-status: bool,
    verification-outcome: (optional bool)
  }
)

;; Reputation interaction tracking system
(define-map reputation-interaction-ledger
  { interaction-unique-identifier: (buff 32) }
  {
    source-identity-hash: (buff 32),
    target-identity-hash: (buff 32),
    interaction-classification: uint,
    reputation-score-adjustment: int,
    interaction-block-timestamp: uint,
    cryptographic-proof-hash: (buff 32)
  }
)

;; Zero-knowledge proof storage system
(define-map zero-knowledge-proof-vault
  { proof-unique-identifier: (buff 32) }
  {
    proof-owner-identity-hash: (buff 32),
    proof-classification-type: uint,
    cryptographic-proof-payload: (buff 512),
    proof-verification-status: bool,
    proof-submission-timestamp: uint
  }
)

;; Anonymous group management system
(define-map decentralized-group-registry
  { group-unique-identifier: (buff 32) }
  {
    human-readable-group-name: (string-ascii 64),
    required-minimum-reputation: uint,
    current-active-member-count: uint,
    group-creation-timestamp: uint,
    group-operational-status: bool
  }
)

;; Anonymous group membership tracking
(define-map anonymous-membership-registry
  { membership-unique-identifier: (buff 32) }
  {
    associated-group-identifier: (buff 32),
    member-privacy-commitment: (buff 32),
    membership-establishment-timestamp: uint,
    membership-active-status: bool
  }
)

;; SYSTEM STATE VARIABLES

(define-data-var total-registered-identities uint u0)
(define-data-var completed-verification-count uint u0)
(define-data-var global-reputation-pool uint u10000)
(define-data-var minimum-verification-reputation-requirement uint u50)
(define-data-var protocol-emergency-pause-status bool false)

;; PRIVATE UTILITY FUNCTIONS

;; Generate cryptographically secure deterministic hash for 32-byte inputs
(define-private (create-deterministic-hash 
  (primary-input (buff 32)) 
  (secondary-input (buff 32)) 
  (numeric-salt uint))
  (keccak256 
    (concat 
      (concat primary-input secondary-input) 
      (unwrap-panic (to-consensus-buff? numeric-salt))
    )
  )
)

;; Generate hash for large proof payloads
(define-private (create-proof-deterministic-hash 
  (identity-hash (buff 32)) 
  (proof-payload (buff 512)) 
  (numeric-salt uint))
  (keccak256 
    (concat 
      (concat identity-hash (keccak256 proof-payload)) 
      (unwrap-panic (to-consensus-buff? numeric-salt))
    )
  )
)

;; Validate cryptographic commitment integrity
(define-private (validate-commitment-format (commitment-data (buff 32)))
  (> (len commitment-data) u0)
)

;; Check identity existence in registry
(define-private (check-identity-registration-status (identity-hash (buff 32)))
  (is-some (map-get? anonymous-identity-registry { identity-cryptographic-hash: identity-hash }))
)

;; Retrieve current blockchain height
(define-private (get-current-blockchain-height)
  stacks-block-height
)

;; Validate reputation adjustment parameters
(define-private (validate-reputation-delta-range (reputation-adjustment int))
  (and (>= reputation-adjustment -100) (<= reputation-adjustment 100))
)

;; Calculate adjusted reputation score with bounds checking
(define-private (compute-updated-reputation-score (current-score uint) (score-adjustment int))
  (let ((calculated-new-score 
         (if (< score-adjustment 0)
           (if (>= current-score (to-uint (- 0 score-adjustment)))
             (- current-score (to-uint (- 0 score-adjustment)))
             u0)
           (+ current-score (to-uint score-adjustment)))))
    (if (> calculated-new-score maximum-reputation-ceiling) 
        maximum-reputation-ceiling 
        calculated-new-score))
)

;; Validate zero-knowledge proof structure
(define-private (validate-zero-knowledge-proof-structure (proof-payload (buff 512)))
  (and 
    (> (len proof-payload) u0)
    (<= (len proof-payload) u512)
  )
)

;; Validate identity hash format
(define-private (validate-identity-hash (identity-hash (buff 32)))
  (is-eq (len identity-hash) u32)
)

;; Validate challenge identifier format
(define-private (validate-challenge-identifier (challenge-id (buff 32)))
  (is-eq (len challenge-id) u32)
)

;; Validate group identifier format
(define-private (validate-group-identifier (group-id (buff 32)))
  (is-eq (len group-id) u32)
)

;; Validate cryptographic proof hash
(define-private (validate-proof-hash (proof-hash (buff 32)))
  (is-eq (len proof-hash) u32)
)

;; Validate optional metadata hash
(define-private (validate-optional-metadata (metadata-hash (optional (buff 32))))
  (match metadata-hash
    metadata (is-eq (len metadata) u32)
    true
  )
)

;; PUBLIC READ-ONLY QUERY FUNCTIONS

;; Retrieve anonymous identity information
(define-read-only (get-anonymous-identity-details (identity-hash (buff 32)))
  (map-get? anonymous-identity-registry { identity-cryptographic-hash: identity-hash })
)

;; Query identity reputation score
(define-read-only (query-identity-reputation-score (identity-hash (buff 32)))
  (match (map-get? anonymous-identity-registry { identity-cryptographic-hash: identity-hash })
    identity-record (ok (get current-reputation-score identity-record))
    ERR-IDENTITY-NOT-FOUND
  )
)

;; Check identity verification status
(define-read-only (check-identity-verification-status (identity-hash (buff 32)))
  (match (map-get? anonymous-identity-registry { identity-cryptographic-hash: identity-hash })
    identity-record (ok (>= (get verification-trust-level identity-record) u1))
    ERR-IDENTITY-NOT-FOUND
  )
)

;; Retrieve verification challenge details
(define-read-only (get-verification-challenge-details (challenge-identifier (buff 32)))
  (map-get? verification-challenge-registry { unique-challenge-identifier: challenge-identifier })
)

;; Query anonymous group information
(define-read-only (get-decentralized-group-information (group-identifier (buff 32)))
  (map-get? decentralized-group-registry { group-unique-identifier: group-identifier })
)

;; Get comprehensive system metrics
(define-read-only (get-protocol-system-statistics)
  {
    total-registered-identities: (var-get total-registered-identities),
    completed-verification-count: (var-get completed-verification-count),
    global-reputation-pool: (var-get global-reputation-pool),
    minimum-verification-reputation-requirement: (var-get minimum-verification-reputation-requirement),
    protocol-emergency-pause-status: (var-get protocol-emergency-pause-status)
  }
)

;; Validate proof format compliance
(define-read-only (verify-proof-format-compliance (proof-data (buff 512)))
  (validate-zero-knowledge-proof-structure proof-data)
)

;; IDENTITY LIFECYCLE MANAGEMENT

;; Establish new anonymous identity
(define-public (establish-anonymous-identity 
  (privacy-commitment (buff 32)) 
  (optional-metadata-hash (optional (buff 32))))
  (let (
    (generated-identity-hash 
      (keccak256 
        (concat privacy-commitment 
                (unwrap-panic (to-consensus-buff? stacks-block-height)))))
    (current-blockchain-height (get-current-blockchain-height))
  )
    (asserts! (not (var-get protocol-emergency-pause-status)) ERR-UNAUTHORIZED-ACCESS)
    (asserts! (validate-commitment-format privacy-commitment) ERR-INVALID-CRYPTOGRAPHIC-COMMITMENT)
    (asserts! (not (check-identity-registration-status generated-identity-hash)) ERR-IDENTITY-ALREADY-EXISTS)
    (asserts! (is-none (map-get? identity-ownership-registry { account-principal: tx-sender })) ERR-IDENTITY-ALREADY-EXISTS)
    ;; Validate optional metadata hash if provided
    (asserts! (validate-optional-metadata optional-metadata-hash) ERR-INVALID-INPUT-PARAMETERS)
    
    ;; Register new anonymous identity
    (map-set anonymous-identity-registry
      { identity-cryptographic-hash: generated-identity-hash }
      {
        privacy-commitment: privacy-commitment,
        current-reputation-score: initial-reputation-grant,
        verification-trust-level: u0,
        identity-creation-timestamp: current-blockchain-height,
        most-recent-activity-timestamp: current-blockchain-height,
        identity-active-status: true,
        encrypted-metadata-hash: optional-metadata-hash
      }
    )
    
    ;; Establish private ownership mapping
    (map-set identity-ownership-registry
      { account-principal: tx-sender }
      { 
        owned-identity-hash: generated-identity-hash,
        ownership-establishment-timestamp: current-blockchain-height
      }
    )
    
    ;; Update system-wide statistics
    (var-set total-registered-identities (+ (var-get total-registered-identities) u1))
    
    (ok generated-identity-hash)
  )
)

;; Update identity activity timestamp
(define-public (refresh-identity-activity-status)
  (let (
    (ownership-record (unwrap! (map-get? identity-ownership-registry { account-principal: tx-sender }) ERR-IDENTITY-NOT-FOUND))
    (owned-identity-hash (get owned-identity-hash ownership-record))
    (identity-record (unwrap! (map-get? anonymous-identity-registry { identity-cryptographic-hash: owned-identity-hash }) ERR-IDENTITY-NOT-FOUND))
  )
    (asserts! (not (var-get protocol-emergency-pause-status)) ERR-UNAUTHORIZED-ACCESS)
    (asserts! (get identity-active-status identity-record) ERR-IDENTITY-NOT-FOUND)
    
    ;; Update most recent activity timestamp
    (map-set anonymous-identity-registry
      { identity-cryptographic-hash: owned-identity-hash }
      (merge identity-record { most-recent-activity-timestamp: (get-current-blockchain-height) })
    )
    
    (ok true)
  )
)

;; Deactivate anonymous identity
(define-public (deactivate-owned-identity)
  (let (
    (ownership-record (unwrap! (map-get? identity-ownership-registry { account-principal: tx-sender }) ERR-IDENTITY-NOT-FOUND))
    (owned-identity-hash (get owned-identity-hash ownership-record))
    (identity-record (unwrap! (map-get? anonymous-identity-registry { identity-cryptographic-hash: owned-identity-hash }) ERR-IDENTITY-NOT-FOUND))
  )
    (asserts! (not (var-get protocol-emergency-pause-status)) ERR-UNAUTHORIZED-ACCESS)
    (asserts! (get identity-active-status identity-record) ERR-IDENTITY-NOT-FOUND)
    
    ;; Set identity status to inactive
    (map-set anonymous-identity-registry
      { identity-cryptographic-hash: owned-identity-hash }
      (merge identity-record { identity-active-status: false })
    )
    
    (ok true)
  )
)

;; CRYPTOGRAPHIC VERIFICATION SYSTEM

;; Initiate verification challenge process
(define-public (initiate-identity-verification-challenge 
  (target-identity-hash (buff 32)) 
  (challenge-category uint) 
  (challenge-commitment (buff 32)))
  (let (
    (unique-challenge-id 
      (create-deterministic-hash target-identity-hash challenge-commitment (get-current-blockchain-height)))
    (current-blockchain-height (get-current-blockchain-height))
  )
    (asserts! (not (var-get protocol-emergency-pause-status)) ERR-UNAUTHORIZED-ACCESS)
    (asserts! (validate-identity-hash target-identity-hash) ERR-INVALID-INPUT-PARAMETERS)
    (asserts! (check-identity-registration-status target-identity-hash) ERR-IDENTITY-NOT-FOUND)
    (asserts! (validate-commitment-format challenge-commitment) ERR-INVALID-CRYPTOGRAPHIC-COMMITMENT)
    (asserts! (<= challenge-category maximum-challenge-types) ERR-INVALID-INPUT-PARAMETERS)
    
    ;; Create verification challenge record
    (map-set verification-challenge-registry
      { unique-challenge-identifier: unique-challenge-id }
      {
        target-identity-hash: target-identity-hash,
        challenge-initiator-principal: tx-sender,
        verification-challenge-category: challenge-category,
        challenge-cryptographic-commitment: challenge-commitment,
        challenge-creation-timestamp: current-blockchain-height,
        challenge-resolution-status: false,
        verification-outcome: none
      }
    )
    
    (ok unique-challenge-id)
  )
)

;; Process verification challenge response
(define-public (process-verification-challenge-response 
  (challenge-identifier (buff 32)) 
  (cryptographic-response-proof (buff 512)))
  (let (
    ;; Validate challenge identifier format
    (valid-challenge (asserts! (validate-challenge-identifier challenge-identifier) ERR-INVALID-INPUT-PARAMETERS))
    (challenge-record (unwrap! (map-get? verification-challenge-registry { unique-challenge-identifier: challenge-identifier }) ERR-IDENTITY-NOT-FOUND))
    (target-identity-hash (get target-identity-hash challenge-record))
    (ownership-record (unwrap! (map-get? identity-ownership-registry { account-principal: tx-sender }) ERR-IDENTITY-NOT-FOUND))
    (current-blockchain-height (get-current-blockchain-height))
  )
    (asserts! (not (var-get protocol-emergency-pause-status)) ERR-UNAUTHORIZED-ACCESS)
    (asserts! (is-eq target-identity-hash (get owned-identity-hash ownership-record)) ERR-UNAUTHORIZED-ACCESS)
    (asserts! (not (get challenge-resolution-status challenge-record)) ERR-ALREADY-VERIFIED-IDENTITY)
    (asserts! (< (- current-blockchain-height (get challenge-creation-timestamp challenge-record)) verification-challenge-timeout) ERR-COMMITMENT-EXPIRED)
    (asserts! (validate-zero-knowledge-proof-structure cryptographic-response-proof) ERR-INVALID-ZERO-KNOWLEDGE-PROOF)
    
    ;; Mark challenge as successfully resolved
    (map-set verification-challenge-registry
      { unique-challenge-identifier: challenge-identifier }
      (merge challenge-record { 
        challenge-resolution-status: true,
        verification-outcome: (some true)
      })
    )
    
    ;; Increase verification trust level
    (try! (elevate-identity-verification-level target-identity-hash))
    
    ;; Update global verification statistics
    (var-set completed-verification-count (+ (var-get completed-verification-count) u1))
    
    (ok true)
  )
)

;; Elevate identity verification level (admin function)
(define-public (elevate-identity-verification-level (identity-hash (buff 32)))
  (let (
    ;; Validate identity hash format
    (valid-identity (asserts! (validate-identity-hash identity-hash) ERR-INVALID-INPUT-PARAMETERS))
    (identity-record (unwrap! (map-get? anonymous-identity-registry { identity-cryptographic-hash: identity-hash }) ERR-IDENTITY-NOT-FOUND))
    (elevated-verification-level (+ (get verification-trust-level identity-record) u1))
  )
    (asserts! (is-eq tx-sender contract-deployer) ERR-UNAUTHORIZED-ACCESS)
    
    (map-set anonymous-identity-registry
      { identity-cryptographic-hash: identity-hash }
      (merge identity-record { verification-trust-level: elevated-verification-level })
    )
    
    (ok elevated-verification-level)
  )
)

;; DECENTRALIZED REPUTATION SYSTEM

;; Record reputation interaction between identities
(define-public (record-reputation-interaction
  (recipient-identity-hash (buff 32))
  (interaction-classification uint)
  (reputation-score-adjustment int)
  (cryptographic-proof-hash (buff 32)))
  (let (
    ;; Validate input parameters
    (valid-recipient (asserts! (validate-identity-hash recipient-identity-hash) ERR-INVALID-INPUT-PARAMETERS))
    (valid-proof-hash (asserts! (validate-proof-hash cryptographic-proof-hash) ERR-INVALID-INPUT-PARAMETERS))
    (sender-ownership-record (unwrap! (map-get? identity-ownership-registry { account-principal: tx-sender }) ERR-IDENTITY-NOT-FOUND))
    (sender-identity-hash (get owned-identity-hash sender-ownership-record))
    (sender-identity-record (unwrap! (map-get? anonymous-identity-registry { identity-cryptographic-hash: sender-identity-hash }) ERR-IDENTITY-NOT-FOUND))
    (recipient-identity-record (unwrap! (map-get? anonymous-identity-registry { identity-cryptographic-hash: recipient-identity-hash }) ERR-IDENTITY-NOT-FOUND))
    (unique-interaction-id (create-deterministic-hash sender-identity-hash recipient-identity-hash (get-current-blockchain-height)))
    (current-blockchain-height (get-current-blockchain-height))
  )
    (asserts! (not (var-get protocol-emergency-pause-status)) ERR-UNAUTHORIZED-ACCESS)
    (asserts! (get identity-active-status sender-identity-record) ERR-IDENTITY-NOT-FOUND)
    (asserts! (get identity-active-status recipient-identity-record) ERR-IDENTITY-NOT-FOUND)
    (asserts! (>= (get current-reputation-score sender-identity-record) minimum-reputation-threshold) ERR-INSUFFICIENT-REPUTATION-SCORE)
    (asserts! (validate-reputation-delta-range reputation-score-adjustment) ERR-INVALID-INPUT-PARAMETERS)
    (asserts! (<= interaction-classification maximum-interaction-types) ERR-INVALID-INPUT-PARAMETERS)
    
    ;; Record reputation interaction in ledger
    (map-set reputation-interaction-ledger
      { interaction-unique-identifier: unique-interaction-id }
      {
        source-identity-hash: sender-identity-hash,
        target-identity-hash: recipient-identity-hash,
        interaction-classification: interaction-classification,
        reputation-score-adjustment: reputation-score-adjustment,
        interaction-block-timestamp: current-blockchain-height,
        cryptographic-proof-hash: cryptographic-proof-hash
      }
    )
    
    ;; Apply reputation adjustment to recipient
    (let ((updated-reputation-score 
           (compute-updated-reputation-score 
             (get current-reputation-score recipient-identity-record) 
             reputation-score-adjustment)))
      (map-set anonymous-identity-registry
        { identity-cryptographic-hash: recipient-identity-hash }
        (merge recipient-identity-record { 
          current-reputation-score: updated-reputation-score,
          most-recent-activity-timestamp: current-blockchain-height
        })
      )
    )
    
    (ok unique-interaction-id)
  )
)

;; ANONYMOUS GROUP MANAGEMENT SYSTEM

;; Establish new anonymous group
(define-public (establish-decentralized-anonymous-group 
  (human-readable-name (string-ascii 64)) 
  (required-reputation-threshold uint))
  (let (
    (generated-group-id (keccak256 (unwrap-panic (to-consensus-buff? human-readable-name))))
    (current-blockchain-height (get-current-blockchain-height))
  )
    (asserts! (not (var-get protocol-emergency-pause-status)) ERR-UNAUTHORIZED-ACCESS)
    (asserts! (> (len human-readable-name) u0) ERR-INVALID-INPUT-PARAMETERS)
    (asserts! (<= required-reputation-threshold maximum-reputation-ceiling) ERR-INVALID-INPUT-PARAMETERS)
    (asserts! (is-none (map-get? decentralized-group-registry { group-unique-identifier: generated-group-id })) ERR-IDENTITY-ALREADY-EXISTS)
    
    (map-set decentralized-group-registry
      { group-unique-identifier: generated-group-id }
      {
        human-readable-group-name: human-readable-name,
        required-minimum-reputation: required-reputation-threshold,
        current-active-member-count: u0,
        group-creation-timestamp: current-blockchain-height,
        group-operational-status: true
      }
    )
    
    (ok generated-group-id)
  )
)

;; Join anonymous group with privacy commitment
(define-public (join-anonymous-group-with-commitment 
  (target-group-identifier (buff 32)) 
  (privacy-membership-commitment (buff 32)))
  (let (
    ;; Validate group identifier format
    (valid-group-id (asserts! (validate-group-identifier target-group-identifier) ERR-INVALID-INPUT-PARAMETERS))
    (ownership-record (unwrap! (map-get? identity-ownership-registry { account-principal: tx-sender }) ERR-IDENTITY-NOT-FOUND))
    (owned-identity-hash (get owned-identity-hash ownership-record))
    (identity-record (unwrap! (map-get? anonymous-identity-registry { identity-cryptographic-hash: owned-identity-hash }) ERR-IDENTITY-NOT-FOUND))
    (group-record (unwrap! (map-get? decentralized-group-registry { group-unique-identifier: target-group-identifier }) ERR-IDENTITY-NOT-FOUND))
    (unique-membership-id (create-deterministic-hash target-group-identifier privacy-membership-commitment (get-current-blockchain-height)))
    (current-blockchain-height (get-current-blockchain-height))
  )
    (asserts! (not (var-get protocol-emergency-pause-status)) ERR-UNAUTHORIZED-ACCESS)
    (asserts! (get group-operational-status group-record) ERR-GROUP-ACCESS-DENIED)
    (asserts! (get identity-active-status identity-record) ERR-IDENTITY-NOT-FOUND)
    (asserts! (>= (get current-reputation-score identity-record) (get required-minimum-reputation group-record)) ERR-INSUFFICIENT-REPUTATION-SCORE)
    (asserts! (validate-commitment-format privacy-membership-commitment) ERR-INVALID-CRYPTOGRAPHIC-COMMITMENT)
    
    ;; Create anonymous membership record
    (map-set anonymous-membership-registry
      { membership-unique-identifier: unique-membership-id }
      {
        associated-group-identifier: target-group-identifier,
        member-privacy-commitment: privacy-membership-commitment,
        membership-establishment-timestamp: current-blockchain-height,
        membership-active-status: true
      }
    )
    
    ;; Increment group member count
    (map-set decentralized-group-registry
      { group-unique-identifier: target-group-identifier }
      (merge group-record { current-active-member-count: (+ (get current-active-member-count group-record) u1) })
    )
    
    (ok unique-membership-id)
  )
)

;; ZERO-KNOWLEDGE PROOF INFRASTRUCTURE

;; Submit zero-knowledge proof for verification
(define-public (submit-zero-knowledge-cryptographic-proof 
  (proof-classification-type uint) 
  (cryptographic-proof-payload (buff 512)))
  (let (
    (ownership-record (unwrap! (map-get? identity-ownership-registry { account-principal: tx-sender }) ERR-IDENTITY-NOT-FOUND))
    (owned-identity-hash (get owned-identity-hash ownership-record))
    (unique-proof-id (create-proof-deterministic-hash owned-identity-hash cryptographic-proof-payload (get-current-blockchain-height)))
    (current-blockchain-height (get-current-blockchain-height))
  )
    (asserts! (not (var-get protocol-emergency-pause-status)) ERR-UNAUTHORIZED-ACCESS)
    (asserts! (validate-zero-knowledge-proof-structure cryptographic-proof-payload) ERR-INVALID-ZERO-KNOWLEDGE-PROOF)
    (asserts! (<= proof-classification-type maximum-proof-types) ERR-INVALID-INPUT-PARAMETERS)
    
    (map-set zero-knowledge-proof-vault
      { proof-unique-identifier: unique-proof-id }
      {
        proof-owner-identity-hash: owned-identity-hash,
        proof-classification-type: proof-classification-type,
        cryptographic-proof-payload: cryptographic-proof-payload,
        proof-verification-status: false, ;; External verification required
        proof-submission-timestamp: current-blockchain-height
      }
    )
    
    (ok unique-proof-id)
  )
)

;; ADMINISTRATIVE PROTOCOL FUNCTIONS

;; Toggle protocol emergency pause status
(define-public (toggle-protocol-emergency-pause-status (emergency-pause-state bool))
  (begin
    (asserts! (is-eq tx-sender contract-deployer) ERR-UNAUTHORIZED-ACCESS)
    (var-set protocol-emergency-pause-status emergency-pause-state)
    (ok emergency-pause-state)
  )
)

;; Adjust minimum verification reputation requirement
(define-public (adjust-minimum-verification-reputation-requirement (updated-minimum-requirement uint))
  (begin
    (asserts! (is-eq tx-sender contract-deployer) ERR-UNAUTHORIZED-ACCESS)
    (asserts! (<= updated-minimum-requirement maximum-reputation-ceiling) ERR-INVALID-INPUT-PARAMETERS)
    (var-set minimum-verification-reputation-requirement updated-minimum-requirement)
    (ok updated-minimum-requirement)
  )
)

;; Emergency reputation score adjustment (administrative override)
(define-public (emergency-reputation-score-adjustment 
  (target-identity-hash (buff 32)) 
  (override-reputation-score uint))
  (let (
    ;; Validate identity hash format
    (valid-identity (asserts! (validate-identity-hash target-identity-hash) ERR-INVALID-INPUT-PARAMETERS))
    (identity-record (unwrap! (map-get? anonymous-identity-registry { identity-cryptographic-hash: target-identity-hash }) ERR-IDENTITY-NOT-FOUND))
  )
    (asserts! (is-eq tx-sender contract-deployer) ERR-UNAUTHORIZED-ACCESS)
    (asserts! (<= override-reputation-score maximum-reputation-ceiling) ERR-INVALID-INPUT-PARAMETERS)
    
    (map-set anonymous-identity-registry
      { identity-cryptographic-hash: target-identity-hash }
      (merge identity-record { current-reputation-score: override-reputation-score })
    )
    
    (ok override-reputation-score)
  )
)

Functions (33)

FunctionAccessArgs
create-deterministic-hashprivateprimary-input: (buff 32
create-proof-deterministic-hashprivateidentity-hash: (buff 32
validate-commitment-formatprivatecommitment-data: (buff 32
check-identity-registration-statusprivateidentity-hash: (buff 32
get-current-blockchain-heightprivate
validate-reputation-delta-rangeprivatereputation-adjustment: int
compute-updated-reputation-scoreprivatecurrent-score: uint, score-adjustment: int
validate-zero-knowledge-proof-structureprivateproof-payload: (buff 512
validate-identity-hashprivateidentity-hash: (buff 32
validate-challenge-identifierprivatechallenge-id: (buff 32
validate-group-identifierprivategroup-id: (buff 32
validate-proof-hashprivateproof-hash: (buff 32
validate-optional-metadataprivatemetadata-hash: (optional (buff 32
get-anonymous-identity-detailsread-onlyidentity-hash: (buff 32
query-identity-reputation-scoreread-onlyidentity-hash: (buff 32
check-identity-verification-statusread-onlyidentity-hash: (buff 32
get-verification-challenge-detailsread-onlychallenge-identifier: (buff 32
get-decentralized-group-informationread-onlygroup-identifier: (buff 32
get-protocol-system-statisticsread-only
verify-proof-format-complianceread-onlyproof-data: (buff 512
establish-anonymous-identitypublicprivacy-commitment: (buff 32
refresh-identity-activity-statuspublic
deactivate-owned-identitypublic
initiate-identity-verification-challengepublictarget-identity-hash: (buff 32
process-verification-challenge-responsepublicchallenge-identifier: (buff 32
elevate-identity-verification-levelpublicidentity-hash: (buff 32
record-reputation-interactionpublicrecipient-identity-hash: (buff 32
establish-decentralized-anonymous-grouppublichuman-readable-name: (string-ascii 64
join-anonymous-group-with-commitmentpublictarget-group-identifier: (buff 32
submit-zero-knowledge-cryptographic-proofpublicproof-classification-type: uint, cryptographic-proof-payload: (buff 512
toggle-protocol-emergency-pause-statuspublicemergency-pause-state: bool
adjust-minimum-verification-reputation-requirementpublicupdated-minimum-requirement: uint
emergency-reputation-score-adjustmentpublictarget-identity-hash: (buff 32