Negrão dos Oito Baixos
type: MusicGroup
genre: forró
popularity: 2
followers: 266
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfdd459ff36dab45c4e1af25d205f8d777c29c806663b57aa46effd5437645a6c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/51204902-112a-4da5-ba57-434b5c621160.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/51204902-112a-4da5-ba57-434b5c621160.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/51204902-112a-4da5-ba57-434b5c621160
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfdd459ff36dab45c4e1af25d205f8d777c29c806663b57aa46effd5437645a6c","name":"Negrão dos Oito Baixos","registered_at":"2026-06-16T17:48:41Z","symbol":"NIM1128472","token_address":"0xbb0477ace8e32cc5c8df97ddcbecbb6f878201fe","type":"artist","uuid":"51204902-112a-4da5-ba57-434b5c621160"}
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 0xfdd459ff36dab45c4e1af25d205f8d777c29c806663b57aa46effd5437645a6c. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51204902-112a-4da5-ba57-434b5c621160.json and https://artists.proofprofile.net/proofs/artist/51204902-112a-4da5-ba57-434b5c621160.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xfdd459ff36dab45c4e1af25d205f8d777c29c806663b57aa46effd5437645a6c","name":"Negrão dos Oito Baixos","registered_at":"2026-06-16T17:48:41Z","symbol":"NIM1128472","token_address":"0xbb0477ace8e32cc5c8df97ddcbecbb6f878201fe","type":"artist","uuid":"51204902-112a-4da5-ba57-434b5c621160"}
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  type: MusicAlbum
  date published: 1973-02-15
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  date published: 1974-02-15
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