Def Loken
type: MusicGroup
popularity: 13
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5a262848c88cbfa0b0d5e06b6396b73a48610f04926f87bb2745842bb18098d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953588
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953588
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/01150acb-016e-4635-a26d-2c19bb84e030.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/01150acb-016e-4635-a26d-2c19bb84e030.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/01150acb-016e-4635-a26d-2c19bb84e030
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T04:52:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5a262848c88cbfa0b0d5e06b6396b73a48610f04926f87bb2745842bb18098d8","name":"Def Loken","registered_at":"2026-06-14T04:35:29Z","symbol":"NIM0340220","token_address":"0x3f6c9dbb908354160f8b1053474d156d4843f0c4","type":"artist","uuid":"01150acb-016e-4635-a26d-2c19bb84e030"}
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 0x5a262848c88cbfa0b0d5e06b6396b73a48610f04926f87bb2745842bb18098d8. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/01150acb-016e-4635-a26d-2c19bb84e030.json and https://artists.proofprofile.net/proofs/artist/01150acb-016e-4635-a26d-2c19bb84e030.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T04:52:46Z
  text: {"copyright_id":"0x5a262848c88cbfa0b0d5e06b6396b73a48610f04926f87bb2745842bb18098d8","name":"Def Loken","registered_at":"2026-06-14T04:35:29Z","symbol":"NIM0340220","token_address":"0x3f6c9dbb908354160f8b1053474d156d4843f0c4","type":"artist","uuid":"01150acb-016e-4635-a26d-2c19bb84e030"}
album: El Dolor Es Medicina
  type: MusicAlbum
  date published: 2025-05-23