Papa Jack
type: MusicGroup
popularity: 3
followers: 264
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa26da76e27b2cc1b7d613859bd9094ff2d639b8b2a482ec6bd9d508fec3d8a4c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba739c86-80dc-4308-a2c8-e024c05d7b89.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba739c86-80dc-4308-a2c8-e024c05d7b89.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ba739c86-80dc-4308-a2c8-e024c05d7b89
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa26da76e27b2cc1b7d613859bd9094ff2d639b8b2a482ec6bd9d508fec3d8a4c","name":"Papa Jack","registered_at":"2026-06-20T16:49:07Z","symbol":"NIM1657054","token_address":"0xfcdca9f9a834ad304fe08abd35e17726d013eb32","type":"artist","uuid":"ba739c86-80dc-4308-a2c8-e024c05d7b89"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26da76e27b2cc1b7d613859bd9094ff2d639b8b2a482ec6bd9d508fec3d8a4c. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba739c86-80dc-4308-a2c8-e024c05d7b89.json and https://artists.proofprofile.net/proofs/artist/ba739c86-80dc-4308-a2c8-e024c05d7b89.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xa26da76e27b2cc1b7d613859bd9094ff2d639b8b2a482ec6bd9d508fec3d8a4c","name":"Papa Jack","registered_at":"2026-06-20T16:49:07Z","symbol":"NIM1657054","token_address":"0xfcdca9f9a834ad304fe08abd35e17726d013eb32","type":"artist","uuid":"ba739c86-80dc-4308-a2c8-e024c05d7b89"}
album: Progressive
  type: MusicAlbum
  date published: 2009-01-23
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  type: MusicAlbum
  date published: 2019-10-18
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  type: MusicAlbum
  date published: 2020-09-04
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  type: MusicAlbum
  date published: 2020-11-20
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  type: MusicAlbum
  date published: 2021-02-05
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  type: MusicAlbum
  date published: 2023-02-15