National Symphony Orchestra Washington
type: MusicGroup
popularity: 21
followers: 166
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64f030b5df19a989600a46563763771097ea1817f2469526d71f2eabc040b479
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/43411c40-704c-436f-b9c6-fd4250204575.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/43411c40-704c-436f-b9c6-fd4250204575.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/43411c40-704c-436f-b9c6-fd4250204575
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x64f030b5df19a989600a46563763771097ea1817f2469526d71f2eabc040b479","name":"National Symphony Orchestra Washington","registered_at":"2026-06-12T15:19:57Z","symbol":"NIM0086302","token_address":"0x2d1d3db3867dd4f73e93eb9da265668250bd18c4","type":"artist","uuid":"43411c40-704c-436f-b9c6-fd4250204575"}
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 0x64f030b5df19a989600a46563763771097ea1817f2469526d71f2eabc040b479. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43411c40-704c-436f-b9c6-fd4250204575.json and https://artists.proofprofile.net/proofs/artist/43411c40-704c-436f-b9c6-fd4250204575.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x64f030b5df19a989600a46563763771097ea1817f2469526d71f2eabc040b479","name":"National Symphony Orchestra Washington","registered_at":"2026-06-12T15:19:57Z","symbol":"NIM0086302","token_address":"0x2d1d3db3867dd4f73e93eb9da265668250bd18c4","type":"artist","uuid":"43411c40-704c-436f-b9c6-fd4250204575"}
album: Messiaen: La Nativité du Seigneur; La Tranfiguration de Notre Seigneur Jésus Christ
  type: MusicAlbum
  date published: 1989-01-01