Pol Craker
type: MusicGroup
popularity: 2
followers: 76
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x62d7ee7fd2c4678f3c313082769914f0dd1e8ef03f4eb45708c54787a4cc9ac5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/23eee52f-11e8-4728-8a9e-9024030cb013.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/23eee52f-11e8-4728-8a9e-9024030cb013.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/23eee52f-11e8-4728-8a9e-9024030cb013
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x62d7ee7fd2c4678f3c313082769914f0dd1e8ef03f4eb45708c54787a4cc9ac5","name":"Pol Craker","registered_at":"2026-06-16T02:01:28Z","symbol":"NIM0902381","token_address":"0x4b2e4fb004c2c1a782f1ea200ff979a68074de7a","type":"artist","uuid":"23eee52f-11e8-4728-8a9e-9024030cb013"}
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 0x62d7ee7fd2c4678f3c313082769914f0dd1e8ef03f4eb45708c54787a4cc9ac5. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23eee52f-11e8-4728-8a9e-9024030cb013.json and https://artists.proofprofile.net/proofs/artist/23eee52f-11e8-4728-8a9e-9024030cb013.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x62d7ee7fd2c4678f3c313082769914f0dd1e8ef03f4eb45708c54787a4cc9ac5","name":"Pol Craker","registered_at":"2026-06-16T02:01:28Z","symbol":"NIM0902381","token_address":"0x4b2e4fb004c2c1a782f1ea200ff979a68074de7a","type":"artist","uuid":"23eee52f-11e8-4728-8a9e-9024030cb013"}
album: De Vuelta
  type: MusicAlbum
  date published: 2022-12-13
album: Bambu
  type: MusicAlbum
  date published: 2024-01-22
album: Bambu Live
  type: MusicAlbum
  date published: 2024-08-15
album: OPEN
  type: MusicAlbum
  date published: 2025-01-14