A Howard
type: MusicGroup
popularity: 27
followers: 28
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x684aa66dae2e41f7b74019b01edb59f554d135b1b2676b2d76a3b9f4187f610b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2f8f2035-4a5d-441b-bb0d-63c0ef8b68a3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2f8f2035-4a5d-441b-bb0d-63c0ef8b68a3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2f8f2035-4a5d-441b-bb0d-63c0ef8b68a3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x684aa66dae2e41f7b74019b01edb59f554d135b1b2676b2d76a3b9f4187f610b","name":"A Howard","registered_at":"2026-06-11T15:21:53Z","symbol":"NIM0061932","token_address":"0x02a81f04740dd42c5e31273ac0f32e4545f3c673","type":"artist","uuid":"2f8f2035-4a5d-441b-bb0d-63c0ef8b68a3"}
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 0x684aa66dae2e41f7b74019b01edb59f554d135b1b2676b2d76a3b9f4187f610b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2f8f2035-4a5d-441b-bb0d-63c0ef8b68a3.json and https://artists.proofprofile.net/proofs/artist/2f8f2035-4a5d-441b-bb0d-63c0ef8b68a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x684aa66dae2e41f7b74019b01edb59f554d135b1b2676b2d76a3b9f4187f610b","name":"A Howard","registered_at":"2026-06-11T15:21:53Z","symbol":"NIM0061932","token_address":"0x02a81f04740dd42c5e31273ac0f32e4545f3c673","type":"artist","uuid":"2f8f2035-4a5d-441b-bb0d-63c0ef8b68a3"}
album: Fragile
  type: MusicAlbum
  date published: 2024-11-08
album: And So It Goes
  type: MusicAlbum
  date published: 2024-12-06
album: The Winner Takes It All
  type: MusicAlbum
  date published: 2025-01-24