Virginia Ferreyra
type: MusicGroup
popularity: 3
followers: 1053
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xde11cca8b5530d78c592d0d43a0882aee3b6a441ac2ebcc4548c4ba2ef9c338b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953875
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953875
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0886c51b-fc75-40dc-b739-e0b2bf2109c3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0886c51b-fc75-40dc-b739-e0b2bf2109c3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0886c51b-fc75-40dc-b739-e0b2bf2109c3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:12:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xde11cca8b5530d78c592d0d43a0882aee3b6a441ac2ebcc4548c4ba2ef9c338b","name":"Virginia Ferreyra","registered_at":"2026-06-15T16:34:07Z","symbol":"NIM0766997","token_address":"0x354606553a323171d620dc2a045cc845d633e2d4","type":"artist","uuid":"0886c51b-fc75-40dc-b739-e0b2bf2109c3"}
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 0xde11cca8b5530d78c592d0d43a0882aee3b6a441ac2ebcc4548c4ba2ef9c338b. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0886c51b-fc75-40dc-b739-e0b2bf2109c3.json and https://artists.proofprofile.net/proofs/artist/0886c51b-fc75-40dc-b739-e0b2bf2109c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0xde11cca8b5530d78c592d0d43a0882aee3b6a441ac2ebcc4548c4ba2ef9c338b","name":"Virginia Ferreyra","registered_at":"2026-06-15T16:34:07Z","symbol":"NIM0766997","token_address":"0x354606553a323171d620dc2a045cc845d633e2d4","type":"artist","uuid":"0886c51b-fc75-40dc-b739-e0b2bf2109c3"}
album: Virginia Ferreyra
  type: MusicAlbum
  date published: 2018-02-16
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