Sam De Nef
type: MusicGroup
popularity: 17
followers: 2073
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xca2493526bda5606b660fc18729df290db9877e2357c6b3bebaff46257cb0bde
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953724
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953724
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e505b2a-4cab-406d-ac6f-a34e6a64afce.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e505b2a-4cab-406d-ac6f-a34e6a64afce.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8e505b2a-4cab-406d-ac6f-a34e6a64afce
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T01:43:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xca2493526bda5606b660fc18729df290db9877e2357c6b3bebaff46257cb0bde","name":"Sam De Nef","registered_at":"2026-06-14T19:27:12Z","symbol":"NIM0552899","token_address":"0x5dd67f3a0b012ef18f6394d14a9a350d61740101","type":"artist","uuid":"8e505b2a-4cab-406d-ac6f-a34e6a64afce"}
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 0xca2493526bda5606b660fc18729df290db9877e2357c6b3bebaff46257cb0bde. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e505b2a-4cab-406d-ac6f-a34e6a64afce.json and https://artists.proofprofile.net/proofs/artist/8e505b2a-4cab-406d-ac6f-a34e6a64afce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T01:43:13Z
  text: {"copyright_id":"0xca2493526bda5606b660fc18729df290db9877e2357c6b3bebaff46257cb0bde","name":"Sam De Nef","registered_at":"2026-06-14T19:27:12Z","symbol":"NIM0552899","token_address":"0x5dd67f3a0b012ef18f6394d14a9a350d61740101","type":"artist","uuid":"8e505b2a-4cab-406d-ac6f-a34e6a64afce"}
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