Calvin Carrier
type: MusicGroup
popularity: 4
followers: 21
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x733dd23c0ed8884afc1e4a388dc186d6da28644ef506c30e3c9e278eabbbf726
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954500
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b79def2-e4c5-4272-b7c8-821e3f03ab65.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b79def2-e4c5-4272-b7c8-821e3f03ab65.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9b79def2-e4c5-4272-b7c8-821e3f03ab65
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T04:47:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x733dd23c0ed8884afc1e4a388dc186d6da28644ef506c30e3c9e278eabbbf726","name":"Calvin Carrier","registered_at":"2026-06-20T03:44:02Z","symbol":"NIM1501712","token_address":"0x911334b6c05f3fb33bea4be8eef1387aa62727f9","type":"artist","uuid":"9b79def2-e4c5-4272-b7c8-821e3f03ab65"}
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 0x733dd23c0ed8884afc1e4a388dc186d6da28644ef506c30e3c9e278eabbbf726. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b79def2-e4c5-4272-b7c8-821e3f03ab65.json and https://artists.proofprofile.net/proofs/artist/9b79def2-e4c5-4272-b7c8-821e3f03ab65.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T04:47:29Z
  text: {"copyright_id":"0x733dd23c0ed8884afc1e4a388dc186d6da28644ef506c30e3c9e278eabbbf726","name":"Calvin Carrier","registered_at":"2026-06-20T03:44:02Z","symbol":"NIM1501712","token_address":"0x911334b6c05f3fb33bea4be8eef1387aa62727f9","type":"artist","uuid":"9b79def2-e4c5-4272-b7c8-821e3f03ab65"}
album: Live at Cirque Royal
  type: MusicAlbum
  date published: 2022-08-28
album: Sound of End
  type: MusicAlbum
  date published: 2023-08-14
album: Slowness
  type: MusicAlbum
  date published: 2025-02-24