Joaquin Achúcarro
type: MusicGroup
popularity: 7
followers: 1263
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc225e70b13eb37302676b4ecb1fac0c4b32b3774972a3c354cfc521a9b93282c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953980
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953980
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b8dbea7-a7b8-4a09-abeb-55448578c7a0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b8dbea7-a7b8-4a09-abeb-55448578c7a0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2b8dbea7-a7b8-4a09-abeb-55448578c7a0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T17:16:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc225e70b13eb37302676b4ecb1fac0c4b32b3774972a3c354cfc521a9b93282c","name":"Joaquin Achúcarro","registered_at":"2026-06-16T05:00:44Z","symbol":"NIM0945187","token_address":"0xabaa5f1e5943d40ce923cab58398bc4a914f0666","type":"artist","uuid":"2b8dbea7-a7b8-4a09-abeb-55448578c7a0"}
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 0xc225e70b13eb37302676b4ecb1fac0c4b32b3774972a3c354cfc521a9b93282c. Chain 2 (Bitcoin): anchored in block 953980 (2026-06-16T17:16:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b8dbea7-a7b8-4a09-abeb-55448578c7a0.json and https://artists.proofprofile.net/proofs/artist/2b8dbea7-a7b8-4a09-abeb-55448578c7a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T17:16:51Z
  text: {"copyright_id":"0xc225e70b13eb37302676b4ecb1fac0c4b32b3774972a3c354cfc521a9b93282c","name":"Joaquin Achúcarro","registered_at":"2026-06-16T05:00:44Z","symbol":"NIM0945187","token_address":"0xabaa5f1e5943d40ce923cab58398bc4a914f0666","type":"artist","uuid":"2b8dbea7-a7b8-4a09-abeb-55448578c7a0"}
album: Favorite Spanish Piano Pieces
  type: MusicAlbum
  date published: 1972
album: Goyescas
  type: MusicAlbum
  date published: 1972
album: Música Española por un Poeta del Piano
  type: MusicAlbum
  date published: 1977