剎那 / SETXUNA
type: MusicGroup
popularity: 2
followers: 140
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdce02ca49a5dfebe5d75b06fc3c3e6e4fe34d58ab97609b64b80b9db64b12d11
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eefb2a0b-7722-44eb-9e43-3f49f65e454a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eefb2a0b-7722-44eb-9e43-3f49f65e454a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eefb2a0b-7722-44eb-9e43-3f49f65e454a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdce02ca49a5dfebe5d75b06fc3c3e6e4fe34d58ab97609b64b80b9db64b12d11","name":"剎那 / SETXUNA","registered_at":"2026-06-21T12:02:43Z","symbol":"NIM1917238","token_address":"0xa20f9b804a82fe4083b5c124998d2d4ce8d67258","type":"artist","uuid":"eefb2a0b-7722-44eb-9e43-3f49f65e454a"}
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 0xdce02ca49a5dfebe5d75b06fc3c3e6e4fe34d58ab97609b64b80b9db64b12d11. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eefb2a0b-7722-44eb-9e43-3f49f65e454a.json and https://artists.proofprofile.net/proofs/artist/eefb2a0b-7722-44eb-9e43-3f49f65e454a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xdce02ca49a5dfebe5d75b06fc3c3e6e4fe34d58ab97609b64b80b9db64b12d11","name":"剎那 / SETXUNA","registered_at":"2026-06-21T12:02:43Z","symbol":"NIM1917238","token_address":"0xa20f9b804a82fe4083b5c124998d2d4ce8d67258","type":"artist","uuid":"eefb2a0b-7722-44eb-9e43-3f49f65e454a"}
album: not Juliet
  type: MusicAlbum
  date published: 2024-04-24
album: 名もない花
  type: MusicAlbum
  date published: 2024-04-24
album: 赴約
  type: MusicAlbum
  date published: 2024-12-01