Zéro 3/4
type: MusicGroup
popularity: 3
followers: 118
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4156e4fbe2e450dfa1ad6e158db8c9a7e84d055aba8aa5240b2a5f4cb2897ce6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/054cdff8-cdcc-48d0-bd05-6e21fe11926f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/054cdff8-cdcc-48d0-bd05-6e21fe11926f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/054cdff8-cdcc-48d0-bd05-6e21fe11926f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4156e4fbe2e450dfa1ad6e158db8c9a7e84d055aba8aa5240b2a5f4cb2897ce6","name":"Zéro 3/4","registered_at":"2026-06-15T15:21:37Z","symbol":"NIM0749679","token_address":"0x380d4df016bb667ce61eed6c0428ad33601423b0","type":"artist","uuid":"054cdff8-cdcc-48d0-bd05-6e21fe11926f"}
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 0x4156e4fbe2e450dfa1ad6e158db8c9a7e84d055aba8aa5240b2a5f4cb2897ce6. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/054cdff8-cdcc-48d0-bd05-6e21fe11926f.json and https://artists.proofprofile.net/proofs/artist/054cdff8-cdcc-48d0-bd05-6e21fe11926f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x4156e4fbe2e450dfa1ad6e158db8c9a7e84d055aba8aa5240b2a5f4cb2897ce6","name":"Zéro 3/4","registered_at":"2026-06-15T15:21:37Z","symbol":"NIM0749679","token_address":"0x380d4df016bb667ce61eed6c0428ad33601423b0","type":"artist","uuid":"054cdff8-cdcc-48d0-bd05-6e21fe11926f"}
album: Westcott
  type: MusicAlbum
  date published: 2024-05-17
album: «Crink» le bidet
  type: MusicAlbum
  date published: 2024-05-24
album: On the radio
  type: MusicAlbum
  date published: 2024-05-31
album: La Machine
  type: MusicAlbum
  date published: 2024-06-14
album: Zéro 3/4 (Radio Edit)
  type: MusicAlbum
  date published: 2024-10-04