Beni Ninagawa
type: MusicGroup
popularity: 3
followers: 31
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2b6047b1fd5d543431f8baac33e8721c428f918e2f8c69ee5b77f1f1819eae4e
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/ed1861c6-33eb-48fb-a338-13f35084c007.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ed1861c6-33eb-48fb-a338-13f35084c007.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ed1861c6-33eb-48fb-a338-13f35084c007
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2b6047b1fd5d543431f8baac33e8721c428f918e2f8c69ee5b77f1f1819eae4e","name":"Beni Ninagawa","registered_at":"2026-06-21T11:24:48Z","symbol":"NIM1911078","token_address":"0x35a95cdc439f7bb0e9194c3afcd6029ce54e318d","type":"artist","uuid":"ed1861c6-33eb-48fb-a338-13f35084c007"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6047b1fd5d543431f8baac33e8721c428f918e2f8c69ee5b77f1f1819eae4e. 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/ed1861c6-33eb-48fb-a338-13f35084c007.json and https://artists.proofprofile.net/proofs/artist/ed1861c6-33eb-48fb-a338-13f35084c007.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x2b6047b1fd5d543431f8baac33e8721c428f918e2f8c69ee5b77f1f1819eae4e","name":"Beni Ninagawa","registered_at":"2026-06-21T11:24:48Z","symbol":"NIM1911078","token_address":"0x35a95cdc439f7bb0e9194c3afcd6029ce54e318d","type":"artist","uuid":"ed1861c6-33eb-48fb-a338-13f35084c007"}
album: syamisen de hiitemita Vol.1
  type: MusicAlbum
  date published: 2024-08-28
album: Harune
  type: MusicAlbum
  date published: 2025-04-03