JOSEP CALI
type: MusicGroup
popularity: 21
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd403043463b21ee558e3b46b78508d8b6abc498f3faed10ded3f3cefcdd1310c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/efb56cfc-4c9e-4788-9aaa-34286aa81fe8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/efb56cfc-4c9e-4788-9aaa-34286aa81fe8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/efb56cfc-4c9e-4788-9aaa-34286aa81fe8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd403043463b21ee558e3b46b78508d8b6abc498f3faed10ded3f3cefcdd1310c","name":"JOSEP CALI","registered_at":"2026-06-12T13:13:12Z","symbol":"NIM0308236","token_address":"0xf12687656410b7599a077ee24a5e871ff12ef98c","type":"artist","uuid":"efb56cfc-4c9e-4788-9aaa-34286aa81fe8"}
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 0xd403043463b21ee558e3b46b78508d8b6abc498f3faed10ded3f3cefcdd1310c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/efb56cfc-4c9e-4788-9aaa-34286aa81fe8.json and https://artists.proofprofile.net/proofs/artist/efb56cfc-4c9e-4788-9aaa-34286aa81fe8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0xd403043463b21ee558e3b46b78508d8b6abc498f3faed10ded3f3cefcdd1310c","name":"JOSEP CALI","registered_at":"2026-06-12T13:13:12Z","symbol":"NIM0308236","token_address":"0xf12687656410b7599a077ee24a5e871ff12ef98c","type":"artist","uuid":"efb56cfc-4c9e-4788-9aaa-34286aa81fe8"}
album: Calle Prendia
  type: MusicAlbum
  date published: 2025-01-18