The Sassy Swingers
type: MusicGroup
genre: country rock
genre: soul blues
genre: swing music
popularity: 2
followers: 293
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x39f55b4a2567987a55792e4286c2f9f1a6398614543e8508d2b9aa9ba6aa6432
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8a08a97-144e-42d7-91d4-b3ae8753a7e3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8a08a97-144e-42d7-91d4-b3ae8753a7e3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a8a08a97-144e-42d7-91d4-b3ae8753a7e3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x39f55b4a2567987a55792e4286c2f9f1a6398614543e8508d2b9aa9ba6aa6432","name":"The Sassy Swingers","registered_at":"2026-06-20T08:24:12Z","symbol":"NIM1565502","token_address":"0x13bb7af6e11ad9ea08a6f417cca1327f14fc8be2","type":"artist","uuid":"a8a08a97-144e-42d7-91d4-b3ae8753a7e3"}
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 0x39f55b4a2567987a55792e4286c2f9f1a6398614543e8508d2b9aa9ba6aa6432. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8a08a97-144e-42d7-91d4-b3ae8753a7e3.json and https://artists.proofprofile.net/proofs/artist/a8a08a97-144e-42d7-91d4-b3ae8753a7e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x39f55b4a2567987a55792e4286c2f9f1a6398614543e8508d2b9aa9ba6aa6432","name":"The Sassy Swingers","registered_at":"2026-06-20T08:24:12Z","symbol":"NIM1565502","token_address":"0x13bb7af6e11ad9ea08a6f417cca1327f14fc8be2","type":"artist","uuid":"a8a08a97-144e-42d7-91d4-b3ae8753a7e3"}
album: Music from New Orleans
  type: MusicAlbum
  date published: 2018-03-02
album: To the Doctor's
  type: MusicAlbum
  date published: 2021-03-23
album: So Sassy
  type: MusicAlbum
  date published: 2021-04-02