Will Haff
type: MusicGroup
popularity: 17
followers: 56
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee87fef4cb54a67476e3584f933dbb6170f336eb350a49313353464fed3009d9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953660
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953660
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/52411920-6579-4b54-a15e-b3a29f02f531.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/52411920-6579-4b54-a15e-b3a29f02f531.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/52411920-6579-4b54-a15e-b3a29f02f531
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T17:20:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xee87fef4cb54a67476e3584f933dbb6170f336eb350a49313353464fed3009d9","name":"Will Haff","registered_at":"2026-06-14T13:06:27Z","symbol":"NIM0462086","token_address":"0x78cdb6c97ecc9eb867a057a614f02b8f7ac7fc3d","type":"artist","uuid":"52411920-6579-4b54-a15e-b3a29f02f531"}
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 0xee87fef4cb54a67476e3584f933dbb6170f336eb350a49313353464fed3009d9. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52411920-6579-4b54-a15e-b3a29f02f531.json and https://artists.proofprofile.net/proofs/artist/52411920-6579-4b54-a15e-b3a29f02f531.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T17:20:01Z
  text: {"copyright_id":"0xee87fef4cb54a67476e3584f933dbb6170f336eb350a49313353464fed3009d9","name":"Will Haff","registered_at":"2026-06-14T13:06:27Z","symbol":"NIM0462086","token_address":"0x78cdb6c97ecc9eb867a057a614f02b8f7ac7fc3d","type":"artist","uuid":"52411920-6579-4b54-a15e-b3a29f02f531"}