Firehouse Five Plus 2
type: MusicGroup
genre: ragtime
popularity: 3
followers: 80
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc0667d0c5ce5ec35fac530466b88968c01707f225fa2bfbf4a3fa85705994ce5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c12925c2-34b4-4a76-995b-b9b3d81bc3a0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c12925c2-34b4-4a76-995b-b9b3d81bc3a0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c12925c2-34b4-4a76-995b-b9b3d81bc3a0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc0667d0c5ce5ec35fac530466b88968c01707f225fa2bfbf4a3fa85705994ce5","name":"Firehouse Five Plus 2","registered_at":"2026-06-20T19:24:04Z","symbol":"NIM1690026","token_address":"0xf57bd335da764daada770e4cb308adef5608540e","type":"artist","uuid":"c12925c2-34b4-4a76-995b-b9b3d81bc3a0"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0667d0c5ce5ec35fac530466b88968c01707f225fa2bfbf4a3fa85705994ce5. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c12925c2-34b4-4a76-995b-b9b3d81bc3a0.json and https://artists.proofprofile.net/proofs/artist/c12925c2-34b4-4a76-995b-b9b3d81bc3a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0xc0667d0c5ce5ec35fac530466b88968c01707f225fa2bfbf4a3fa85705994ce5","name":"Firehouse Five Plus 2","registered_at":"2026-06-20T19:24:04Z","symbol":"NIM1690026","token_address":"0xf57bd335da764daada770e4cb308adef5608540e","type":"artist","uuid":"c12925c2-34b4-4a76-995b-b9b3d81bc3a0"}
album: Dixieland Greatest Hits
  type: MusicAlbum
  date published: 2015-04-10
album: Firechief Rag
  type: MusicAlbum
  date published: 2017-05-12