柳家三之助
type: MusicGroup
genre: japanese classical
genre: traditional music
popularity: 13
followers: 70
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x48d1434944dcd11abc60716c07cacfeecfd1ce8057c55893a5813fe7dc71ccde
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d89e409-b59a-4adf-a31e-980a4410a4e3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d89e409-b59a-4adf-a31e-980a4410a4e3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9d89e409-b59a-4adf-a31e-980a4410a4e3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x48d1434944dcd11abc60716c07cacfeecfd1ce8057c55893a5813fe7dc71ccde","name":"柳家三之助","registered_at":"2026-06-14T21:04:46Z","symbol":"NIM0576147","token_address":"0x3ea92c8868a57064b5b8add8473d91b7c19e1cc6","type":"artist","uuid":"9d89e409-b59a-4adf-a31e-980a4410a4e3"}
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 0x48d1434944dcd11abc60716c07cacfeecfd1ce8057c55893a5813fe7dc71ccde. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d89e409-b59a-4adf-a31e-980a4410a4e3.json and https://artists.proofprofile.net/proofs/artist/9d89e409-b59a-4adf-a31e-980a4410a4e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x48d1434944dcd11abc60716c07cacfeecfd1ce8057c55893a5813fe7dc71ccde","name":"柳家三之助","registered_at":"2026-06-14T21:04:46Z","symbol":"NIM0576147","token_address":"0x3ea92c8868a57064b5b8add8473d91b7c19e1cc6","type":"artist","uuid":"9d89e409-b59a-4adf-a31e-980a4410a4e3"}
album: 親子できこう 子ども落語集 二 時そば
  type: MusicAlbum
  date published: 2009