Nat Shilkret & His Orchestra
type: MusicGroup
genre: ragtime
popularity: 2
followers: 137
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4e6747eeb833309ea05e6a3e06aee0ee19e881ad347888934891306beb973a0b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/baf58b06-6642-49bf-9cdf-70f8062c6c50.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/baf58b06-6642-49bf-9cdf-70f8062c6c50.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/baf58b06-6642-49bf-9cdf-70f8062c6c50
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4e6747eeb833309ea05e6a3e06aee0ee19e881ad347888934891306beb973a0b","name":"Nat Shilkret & His Orchestra","registered_at":"2026-06-20T16:52:31Z","symbol":"NIM1658930","token_address":"0x3bd3c4be2acb6eb3daf15e483fd68471cb805411","type":"artist","uuid":"baf58b06-6642-49bf-9cdf-70f8062c6c50"}
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 0x4e6747eeb833309ea05e6a3e06aee0ee19e881ad347888934891306beb973a0b. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/baf58b06-6642-49bf-9cdf-70f8062c6c50.json and https://artists.proofprofile.net/proofs/artist/baf58b06-6642-49bf-9cdf-70f8062c6c50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0x4e6747eeb833309ea05e6a3e06aee0ee19e881ad347888934891306beb973a0b","name":"Nat Shilkret & His Orchestra","registered_at":"2026-06-20T16:52:31Z","symbol":"NIM1658930","token_address":"0x3bd3c4be2acb6eb3daf15e483fd68471cb805411","type":"artist","uuid":"baf58b06-6642-49bf-9cdf-70f8062c6c50"}
album: Nat Shilkret & His Orchestra, 1926-31
  type: MusicAlbum
  date published: 2017-09-05