Quinteto Fina Flor
type: MusicGroup
genre: bossa nova
genre: brazilian jazz
genre: samba
popularity: 33
followers: 1511
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x667ba7b35411a3623578e543783c05656ae82ef45d10a7f0797c25887e9e5157
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/03a6e43a-5bcc-48c4-bf16-b520f3f1295d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03a6e43a-5bcc-48c4-bf16-b520f3f1295d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/03a6e43a-5bcc-48c4-bf16-b520f3f1295d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x667ba7b35411a3623578e543783c05656ae82ef45d10a7f0797c25887e9e5157","name":"Quinteto Fina Flor","registered_at":"2026-06-11T10:54:30Z","symbol":"NIM0005707","token_address":"0x21c3caaf6f69d9be11d403f4c4cda34f69121280","type":"artist","uuid":"03a6e43a-5bcc-48c4-bf16-b520f3f1295d"}
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 0x667ba7b35411a3623578e543783c05656ae82ef45d10a7f0797c25887e9e5157. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03a6e43a-5bcc-48c4-bf16-b520f3f1295d.json and https://artists.proofprofile.net/proofs/artist/03a6e43a-5bcc-48c4-bf16-b520f3f1295d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x667ba7b35411a3623578e543783c05656ae82ef45d10a7f0797c25887e9e5157","name":"Quinteto Fina Flor","registered_at":"2026-06-11T10:54:30Z","symbol":"NIM0005707","token_address":"0x21c3caaf6f69d9be11d403f4c4cda34f69121280","type":"artist","uuid":"03a6e43a-5bcc-48c4-bf16-b520f3f1295d"}
album: Sambas Instrumentais
  type: MusicAlbum
  date published: 2010