Kim Barbier
type: MusicGroup
genre: classical piano
popularity: 12
followers: 111
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb902b5872c7e71b691c4671d74ced4bb810cb2f2a2a7ffa512dfcc5973d5cedd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953695
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953695
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7303f911-f3a3-4025-9ebd-900991033a16.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7303f911-f3a3-4025-9ebd-900991033a16.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7303f911-f3a3-4025-9ebd-900991033a16
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:42:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb902b5872c7e71b691c4671d74ced4bb810cb2f2a2a7ffa512dfcc5973d5cedd","name":"Kim Barbier","registered_at":"2026-06-14T16:28:01Z","symbol":"NIM0510188","token_address":"0x1469fc9dd11684d019a0a564446be2dfbc19a279","type":"artist","uuid":"7303f911-f3a3-4025-9ebd-900991033a16"}
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 0xb902b5872c7e71b691c4671d74ced4bb810cb2f2a2a7ffa512dfcc5973d5cedd. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7303f911-f3a3-4025-9ebd-900991033a16.json and https://artists.proofprofile.net/proofs/artist/7303f911-f3a3-4025-9ebd-900991033a16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:42:01Z
  text: {"copyright_id":"0xb902b5872c7e71b691c4671d74ced4bb810cb2f2a2a7ffa512dfcc5973d5cedd","name":"Kim Barbier","registered_at":"2026-06-14T16:28:01Z","symbol":"NIM0510188","token_address":"0x1469fc9dd11684d019a0a564446be2dfbc19a279","type":"artist","uuid":"7303f911-f3a3-4025-9ebd-900991033a16"}
album: Evocation
  type: MusicAlbum
  date published: 2014-03-04
album: Evocation
  type: MusicAlbum
  date published: 2014-03-04
album: Kim Barbier: Ballade
  type: MusicAlbum
  date published: 2022-05-20