Petro Gryfel
type: MusicGroup
popularity: 6
followers: 1487
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xecb3a2f19b48782a6fbd264fbb3d2e0a07408932b1d5b488b470c77ae1e39b28
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8ffd657-06ee-46e7-8898-11cfc9f3b7b7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8ffd657-06ee-46e7-8898-11cfc9f3b7b7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b8ffd657-06ee-46e7-8898-11cfc9f3b7b7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xecb3a2f19b48782a6fbd264fbb3d2e0a07408932b1d5b488b470c77ae1e39b28","name":"Petro Gryfel","registered_at":"2026-06-20T16:09:45Z","symbol":"NIM1651077","token_address":"0x5e89816bf8e68660cb3e7d07bc5219c60a8df51d","type":"artist","uuid":"b8ffd657-06ee-46e7-8898-11cfc9f3b7b7"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb3a2f19b48782a6fbd264fbb3d2e0a07408932b1d5b488b470c77ae1e39b28. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8ffd657-06ee-46e7-8898-11cfc9f3b7b7.json and https://artists.proofprofile.net/proofs/artist/b8ffd657-06ee-46e7-8898-11cfc9f3b7b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0xecb3a2f19b48782a6fbd264fbb3d2e0a07408932b1d5b488b470c77ae1e39b28","name":"Petro Gryfel","registered_at":"2026-06-20T16:09:45Z","symbol":"NIM1651077","token_address":"0x5e89816bf8e68660cb3e7d07bc5219c60a8df51d","type":"artist","uuid":"b8ffd657-06ee-46e7-8898-11cfc9f3b7b7"}
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