Last Verse
type: MusicGroup
popularity: 13
followers: 572
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa81a02bf590d8bfd17f7d7c6ad80ddce4d4f7e1221e032ed9c3fb7c1a987970b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953678
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953678
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6104309f-1a87-4e3f-a952-15ee05c015c0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6104309f-1a87-4e3f-a952-15ee05c015c0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6104309f-1a87-4e3f-a952-15ee05c015c0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:23:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa81a02bf590d8bfd17f7d7c6ad80ddce4d4f7e1221e032ed9c3fb7c1a987970b","name":"Last Verse","registered_at":"2026-06-14T14:42:26Z","symbol":"NIM0484990","token_address":"0xbf432fca0cea95fb6339cf24fc2df7c9fdab045c","type":"artist","uuid":"6104309f-1a87-4e3f-a952-15ee05c015c0"}
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 0xa81a02bf590d8bfd17f7d7c6ad80ddce4d4f7e1221e032ed9c3fb7c1a987970b. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6104309f-1a87-4e3f-a952-15ee05c015c0.json and https://artists.proofprofile.net/proofs/artist/6104309f-1a87-4e3f-a952-15ee05c015c0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T19:23:11Z
  text: {"copyright_id":"0xa81a02bf590d8bfd17f7d7c6ad80ddce4d4f7e1221e032ed9c3fb7c1a987970b","name":"Last Verse","registered_at":"2026-06-14T14:42:26Z","symbol":"NIM0484990","token_address":"0xbf432fca0cea95fb6339cf24fc2df7c9fdab045c","type":"artist","uuid":"6104309f-1a87-4e3f-a952-15ee05c015c0"}
album: Semper
  type: MusicAlbum
  date published: 2018-09-18
album: Semper
  type: MusicAlbum
  date published: 2018-09-18
album: UH-OH
  type: MusicAlbum
  date published: 2020-05-26
album: UH-OH
  type: MusicAlbum
  date published: 2020-06-02