JOÏ
type: MusicGroup
popularity: 2
followers: 183
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf25576961a112329cf5fdc6db952b09db22d6a71c93d0ca56a142ee219274f73
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c618f0e8-471f-4306-888a-69dc8f657cb3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c618f0e8-471f-4306-888a-69dc8f657cb3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c618f0e8-471f-4306-888a-69dc8f657cb3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf25576961a112329cf5fdc6db952b09db22d6a71c93d0ca56a142ee219274f73","name":"JOÏ","registered_at":"2026-06-20T21:00:37Z","symbol":"NIM1714260","token_address":"0x3ee7cf6e2e65d4120575fe2f2676d6fd70b39dc1","type":"artist","uuid":"c618f0e8-471f-4306-888a-69dc8f657cb3"}
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 0xf25576961a112329cf5fdc6db952b09db22d6a71c93d0ca56a142ee219274f73. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c618f0e8-471f-4306-888a-69dc8f657cb3.json and https://artists.proofprofile.net/proofs/artist/c618f0e8-471f-4306-888a-69dc8f657cb3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0xf25576961a112329cf5fdc6db952b09db22d6a71c93d0ca56a142ee219274f73","name":"JOÏ","registered_at":"2026-06-20T21:00:37Z","symbol":"NIM1714260","token_address":"0x3ee7cf6e2e65d4120575fe2f2676d6fd70b39dc1","type":"artist","uuid":"c618f0e8-471f-4306-888a-69dc8f657cb3"}
album: Technodrame
  type: MusicAlbum
  date published: 2023-11-24
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  type: MusicAlbum
  date published: 2023-12-01
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  type: MusicAlbum
  date published: 2024-11-22
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-09-12