Piano Bar Radio
type: MusicGroup
popularity: 3
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef7fe376af552744be441f38a012ffe5587d9d5be7f9903701dee74d6c054c62
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce9a931e-35c4-4f32-a1f9-e80b9505f7cf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce9a931e-35c4-4f32-a1f9-e80b9505f7cf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ce9a931e-35c4-4f32-a1f9-e80b9505f7cf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xef7fe376af552744be441f38a012ffe5587d9d5be7f9903701dee74d6c054c62","name":"Piano Bar Radio","registered_at":"2026-06-21T00:12:46Z","symbol":"NIM1757976","token_address":"0x2fbc653e6ef533f7a5cadddaa44cf1cf8eadc81f","type":"artist","uuid":"ce9a931e-35c4-4f32-a1f9-e80b9505f7cf"}
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 0xef7fe376af552744be441f38a012ffe5587d9d5be7f9903701dee74d6c054c62. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce9a931e-35c4-4f32-a1f9-e80b9505f7cf.json and https://artists.proofprofile.net/proofs/artist/ce9a931e-35c4-4f32-a1f9-e80b9505f7cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0xef7fe376af552744be441f38a012ffe5587d9d5be7f9903701dee74d6c054c62","name":"Piano Bar Radio","registered_at":"2026-06-21T00:12:46Z","symbol":"NIM1757976","token_address":"0x2fbc653e6ef533f7a5cadddaa44cf1cf8eadc81f","type":"artist","uuid":"ce9a931e-35c4-4f32-a1f9-e80b9505f7cf"}
album: Echoes of Hotel Bars
  type: MusicAlbum
  date published: 2021-06-06
album: Backdrop for Cocktail Lounges - Piano
  type: MusicAlbum
  date published: 2021-06-06
album: 楽しい朝
  type: MusicAlbum
  date published: 2023-10-15
album: 朝の楽しいジャズ曲
  type: MusicAlbum
  date published: 2023-10-18