KaFF KaFF-L
type: MusicGroup
popularity: 4
followers: 214
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0551657dc02df03b23fd957e614e1e7fdf35d09468368be4af26f676cb98d869
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d4986a07-58c9-45bd-abd0-916a4e681ed4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d4986a07-58c9-45bd-abd0-916a4e681ed4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d4986a07-58c9-45bd-abd0-916a4e681ed4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0551657dc02df03b23fd957e614e1e7fdf35d09468368be4af26f676cb98d869","name":"KaFF KaFF-L","registered_at":"2026-06-21T02:18:31Z","symbol":"NIM1789358","token_address":"0xd3535425bebf81b34f29d1f2f50d72df0d66a67c","type":"artist","uuid":"d4986a07-58c9-45bd-abd0-916a4e681ed4"}
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 0x0551657dc02df03b23fd957e614e1e7fdf35d09468368be4af26f676cb98d869. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4986a07-58c9-45bd-abd0-916a4e681ed4.json and https://artists.proofprofile.net/proofs/artist/d4986a07-58c9-45bd-abd0-916a4e681ed4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x0551657dc02df03b23fd957e614e1e7fdf35d09468368be4af26f676cb98d869","name":"KaFF KaFF-L","registered_at":"2026-06-21T02:18:31Z","symbol":"NIM1789358","token_address":"0xd3535425bebf81b34f29d1f2f50d72df0d66a67c","type":"artist","uuid":"d4986a07-58c9-45bd-abd0-916a4e681ed4"}
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