Federico Biraben
type: MusicGroup
genre: folklore argentino
genre: tango
popularity: 2
followers: 124
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x34d918df629442675c6679bcd4104d55aa06680dfcd61f73ec6e6a37c6193649
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dd40d9f-1f43-4f9a-9758-7571847b4f05.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dd40d9f-1f43-4f9a-9758-7571847b4f05.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7dd40d9f-1f43-4f9a-9758-7571847b4f05
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x34d918df629442675c6679bcd4104d55aa06680dfcd61f73ec6e6a37c6193649","name":"Federico Biraben","registered_at":"2026-06-17T09:31:55Z","symbol":"NIM1353483","token_address":"0x101931e19b9e19e3b21419075495162974dc5ff8","type":"artist","uuid":"7dd40d9f-1f43-4f9a-9758-7571847b4f05"}
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 0x34d918df629442675c6679bcd4104d55aa06680dfcd61f73ec6e6a37c6193649. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7dd40d9f-1f43-4f9a-9758-7571847b4f05.json and https://artists.proofprofile.net/proofs/artist/7dd40d9f-1f43-4f9a-9758-7571847b4f05.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0x34d918df629442675c6679bcd4104d55aa06680dfcd61f73ec6e6a37c6193649","name":"Federico Biraben","registered_at":"2026-06-17T09:31:55Z","symbol":"NIM1353483","token_address":"0x101931e19b9e19e3b21419075495162974dc5ff8","type":"artist","uuid":"7dd40d9f-1f43-4f9a-9758-7571847b4f05"}
album: El Lago
  type: MusicAlbum
  date published: 2016-03-16
album: Aurícula
  type: MusicAlbum
  date published: 2020-05-01
album: Solos & Dúos, Pt. I
  type: MusicAlbum
  date published: 2024-05-12
album: Solos & Dúos, Pt. II
  type: MusicAlbum
  date published: 2024-06-08
album: Solos & Dúos, Pt. III
  type: MusicAlbum
  date published: 2024-06-27