A Cantadeira
type: MusicGroup
popularity: 16
followers: 563
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc5eda045ac8e12e74b3aa4b7a4bc929b13ce8b18983a547cf92eb73a1c84a72e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953645
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953645
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e774802-b0d4-4014-b6b9-f52a8822f308.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e774802-b0d4-4014-b6b9-f52a8822f308.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3e774802-b0d4-4014-b6b9-f52a8822f308
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T14:31:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc5eda045ac8e12e74b3aa4b7a4bc929b13ce8b18983a547cf92eb73a1c84a72e","name":"A Cantadeira","registered_at":"2026-06-14T11:00:22Z","symbol":"NIM0432008","token_address":"0x2b66fa187426b42170b7a0c7a952073805a8eec0","type":"artist","uuid":"3e774802-b0d4-4014-b6b9-f52a8822f308"}
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 0xc5eda045ac8e12e74b3aa4b7a4bc929b13ce8b18983a547cf92eb73a1c84a72e. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e774802-b0d4-4014-b6b9-f52a8822f308.json and https://artists.proofprofile.net/proofs/artist/3e774802-b0d4-4014-b6b9-f52a8822f308.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0xc5eda045ac8e12e74b3aa4b7a4bc929b13ce8b18983a547cf92eb73a1c84a72e","name":"A Cantadeira","registered_at":"2026-06-14T11:00:22Z","symbol":"NIM0432008","token_address":"0x2b66fa187426b42170b7a0c7a952073805a8eec0","type":"artist","uuid":"3e774802-b0d4-4014-b6b9-f52a8822f308"}
album: Tecelã
  type: MusicAlbum
  date published: 2020-12-18
album: Tecelã
  type: MusicAlbum
  date published: 2020-12-18
album: Tecelã
  type: MusicAlbum
  date published: 2020-12-18
album: Medo
  type: MusicAlbum
  date published: 2023-06-02
album: Senhora das Flores
  type: MusicAlbum
  date published: 2024-03-08
album: TECELÃ
  type: MusicAlbum
  date published: 2024-05-10
album: TECELÃ
  type: MusicAlbum
  date published: 2024-05-10