Trío Con-Trastes
type: MusicGroup
genre: chamber music
popularity: 4
followers: 180
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0618d3538aa2a2559544a11d9f0fef213efe35f0ccf6341a11c373c26a02dd98
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a18615ad-5930-4b8f-8e7a-3440b1b978ad.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a18615ad-5930-4b8f-8e7a-3440b1b978ad.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a18615ad-5930-4b8f-8e7a-3440b1b978ad
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0618d3538aa2a2559544a11d9f0fef213efe35f0ccf6341a11c373c26a02dd98","name":"Trío Con-Trastes","registered_at":"2026-06-20T05:39:43Z","symbol":"NIM1529156","token_address":"0xdffd675023a5729efa0a943ef7ff3154649d880c","type":"artist","uuid":"a18615ad-5930-4b8f-8e7a-3440b1b978ad"}
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 0x0618d3538aa2a2559544a11d9f0fef213efe35f0ccf6341a11c373c26a02dd98. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a18615ad-5930-4b8f-8e7a-3440b1b978ad.json and https://artists.proofprofile.net/proofs/artist/a18615ad-5930-4b8f-8e7a-3440b1b978ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x0618d3538aa2a2559544a11d9f0fef213efe35f0ccf6341a11c373c26a02dd98","name":"Trío Con-Trastes","registered_at":"2026-06-20T05:39:43Z","symbol":"NIM1529156","token_address":"0xdffd675023a5729efa0a943ef7ff3154649d880c","type":"artist","uuid":"a18615ad-5930-4b8f-8e7a-3440b1b978ad"}
album: Chamber Music (Trios) - Bartok, B. / Glick, S.I. / Khachaturian, A.I. / Stravinsky, I.
  type: MusicAlbum
  date published: 2000-08-01
album: Trio Contrastes: Khachaturian, Bartók, Stravinsky, Glick
  type: MusicAlbum
  date published: 2000-08-15
album: Game Cover
  type: MusicAlbum
  date published: 2016-04-20