Balanço da Sanfona
type: MusicGroup
genre: forró
genre: forró tradicional
genre: piseiro
popularity: 2
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02004efcfc23da8f23adade66823dea47258981dbd0bc93b236a894a0777da7a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c542d639-15ff-4661-aea1-5493000d5cd4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c542d639-15ff-4661-aea1-5493000d5cd4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c542d639-15ff-4661-aea1-5493000d5cd4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x02004efcfc23da8f23adade66823dea47258981dbd0bc93b236a894a0777da7a","name":"Balanço da Sanfona","registered_at":"2026-06-20T20:59:37Z","symbol":"NIM1711274","token_address":"0x63a9cb29b44752f3927c7e6f233c97bf66006728","type":"artist","uuid":"c542d639-15ff-4661-aea1-5493000d5cd4"}
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 0x02004efcfc23da8f23adade66823dea47258981dbd0bc93b236a894a0777da7a. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c542d639-15ff-4661-aea1-5493000d5cd4.json and https://artists.proofprofile.net/proofs/artist/c542d639-15ff-4661-aea1-5493000d5cd4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0x02004efcfc23da8f23adade66823dea47258981dbd0bc93b236a894a0777da7a","name":"Balanço da Sanfona","registered_at":"2026-06-20T20:59:37Z","symbol":"NIM1711274","token_address":"0x63a9cb29b44752f3927c7e6f233c97bf66006728","type":"artist","uuid":"c542d639-15ff-4661-aea1-5493000d5cd4"}