Roy Haas
type: MusicGroup
popularity: 2
followers: 135
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9d7e273ea4f5e27521f66b44377accfde155ae35aa9b5a982cd668bb187aa9d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954573
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954573
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5b07b7d-e849-42f9-b889-40eae347ac1f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5b07b7d-e849-42f9-b889-40eae347ac1f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b5b07b7d-e849-42f9-b889-40eae347ac1f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T15:45:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe9d7e273ea4f5e27521f66b44377accfde155ae35aa9b5a982cd668bb187aa9d","name":"Roy Haas","registered_at":"2026-06-20T14:21:32Z","symbol":"NIM1632842","token_address":"0x0d32091f379d93c7fee41638254b1bdf60e8af15","type":"artist","uuid":"b5b07b7d-e849-42f9-b889-40eae347ac1f"}
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 0xe9d7e273ea4f5e27521f66b44377accfde155ae35aa9b5a982cd668bb187aa9d. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5b07b7d-e849-42f9-b889-40eae347ac1f.json and https://artists.proofprofile.net/proofs/artist/b5b07b7d-e849-42f9-b889-40eae347ac1f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T15:45:29Z
  text: {"copyright_id":"0xe9d7e273ea4f5e27521f66b44377accfde155ae35aa9b5a982cd668bb187aa9d","name":"Roy Haas","registered_at":"2026-06-20T14:21:32Z","symbol":"NIM1632842","token_address":"0x0d32091f379d93c7fee41638254b1bdf60e8af15","type":"artist","uuid":"b5b07b7d-e849-42f9-b889-40eae347ac1f"}
album: Simple
  type: MusicAlbum
  date published: 2016-08-01
album: One Shot
  type: MusicAlbum
  date published: 2022-10-31
album: Decide
  type: MusicAlbum
  date published: 2025-06-06