Cálix
type: MusicGroup
genre: brazilian rock
genre: progressive rock
popularity: 9
followers: 2338
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9aea5948f3ba569f9bf563802f028b9312e878824763a04d015e63168285f1a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3ca0b849-586b-476c-ab75-1c541fc9b557.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3ca0b849-586b-476c-ab75-1c541fc9b557.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3ca0b849-586b-476c-ab75-1c541fc9b557
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa9aea5948f3ba569f9bf563802f028b9312e878824763a04d015e63168285f1a","name":"Cálix","registered_at":"2026-06-16T10:40:38Z","symbol":"NIM1026348","token_address":"0x36f1591fcea5c8d06807fc0a782a29fd2cefe9fa","type":"artist","uuid":"3ca0b849-586b-476c-ab75-1c541fc9b557"}
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 0xa9aea5948f3ba569f9bf563802f028b9312e878824763a04d015e63168285f1a. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ca0b849-586b-476c-ab75-1c541fc9b557.json and https://artists.proofprofile.net/proofs/artist/3ca0b849-586b-476c-ab75-1c541fc9b557.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T02:39:28Z
  text: {"copyright_id":"0xa9aea5948f3ba569f9bf563802f028b9312e878824763a04d015e63168285f1a","name":"Cálix","registered_at":"2026-06-16T10:40:38Z","symbol":"NIM1026348","token_address":"0x36f1591fcea5c8d06807fc0a782a29fd2cefe9fa","type":"artist","uuid":"3ca0b849-586b-476c-ab75-1c541fc9b557"}
album: Canções de Beurin
  type: MusicAlbum
  date published: 2000-04-01
album: A Roda
  type: MusicAlbum
  date published: 2002-08-01
album: Ventos de outono (Ao Vivo)
  type: MusicAlbum
  date published: 2007-11-23
album: Caminhante
  type: MusicAlbum
  date published: 2016-07-01