The Swing Cats
type: MusicGroup
genre: swing music
popularity: 3
followers: 105
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x38e6f3fbc18f797e473195a07f849d33f465427d7ff1943a203c3cdc1c159f52
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954130
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954130
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c4c7384-3f94-487d-8992-2448bbd9b899.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c4c7384-3f94-487d-8992-2448bbd9b899.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7c4c7384-3f94-487d-8992-2448bbd9b899
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:07:14Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x38e6f3fbc18f797e473195a07f849d33f465427d7ff1943a203c3cdc1c159f52","name":"The Swing Cats","registered_at":"2026-06-17T08:58:36Z","symbol":"NIM1345528","token_address":"0xc3686d4f3bfadd4b0afa9d25aeb1ab41bc9f75bc","type":"artist","uuid":"7c4c7384-3f94-487d-8992-2448bbd9b899"}
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 0x38e6f3fbc18f797e473195a07f849d33f465427d7ff1943a203c3cdc1c159f52. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c4c7384-3f94-487d-8992-2448bbd9b899.json and https://artists.proofprofile.net/proofs/artist/7c4c7384-3f94-487d-8992-2448bbd9b899.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:07:14Z
  text: {"copyright_id":"0x38e6f3fbc18f797e473195a07f849d33f465427d7ff1943a203c3cdc1c159f52","name":"The Swing Cats","registered_at":"2026-06-17T08:58:36Z","symbol":"NIM1345528","token_address":"0xc3686d4f3bfadd4b0afa9d25aeb1ab41bc9f75bc","type":"artist","uuid":"7c4c7384-3f94-487d-8992-2448bbd9b899"}
album: Saphie Wells & The Swing Cats
  type: MusicAlbum
  date published: 2016-01-11
album: Used to Be Duke (Live at Jamboree)
  type: MusicAlbum
  date published: 2019-05-31