てつや
type: MusicGroup
popularity: 2
followers: 5
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x725bd4df0a74e0d56232f4b044f9f83a32efd76ec3f4d9746cc972c7e2fde21d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953982
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953982
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c21e440-f40d-4952-aeb2-a424b6b5290d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c21e440-f40d-4952-aeb2-a424b6b5290d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2c21e440-f40d-4952-aeb2-a424b6b5290d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T17:42:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x725bd4df0a74e0d56232f4b044f9f83a32efd76ec3f4d9746cc972c7e2fde21d","name":"てつや","registered_at":"2026-06-16T04:58:33Z","symbol":"NIM0944674","token_address":"0x1ea29913cf003f023d0da4446910f2cf5694817e","type":"artist","uuid":"2c21e440-f40d-4952-aeb2-a424b6b5290d"}
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 0x725bd4df0a74e0d56232f4b044f9f83a32efd76ec3f4d9746cc972c7e2fde21d. Chain 2 (Bitcoin): anchored in block 953982 (2026-06-16T17:42:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c21e440-f40d-4952-aeb2-a424b6b5290d.json and https://artists.proofprofile.net/proofs/artist/2c21e440-f40d-4952-aeb2-a424b6b5290d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T17:42:23Z
  text: {"copyright_id":"0x725bd4df0a74e0d56232f4b044f9f83a32efd76ec3f4d9746cc972c7e2fde21d","name":"てつや","registered_at":"2026-06-16T04:58:33Z","symbol":"NIM0944674","token_address":"0x1ea29913cf003f023d0da4446910f2cf5694817e","type":"artist","uuid":"2c21e440-f40d-4952-aeb2-a424b6b5290d"}
album: 夢見月
  type: MusicAlbum
  date published: 2021-12-21
album: 15の夜
  type: MusicAlbum
  date published: 2022-01-20
album: rainy
  type: MusicAlbum
  date published: 2022-01-20
album: 内緒話
  type: MusicAlbum
  date published: 2022-02-25