Andrea Arr
type: MusicGroup
popularity: 4
followers: 199
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff2dcdd0243f9f9d617d37df2e8c12dd0bb6267267b3d21bd9ff903ffa112899
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b82aa27e-7862-46e0-ac9b-d4cd71abdfc8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b82aa27e-7862-46e0-ac9b-d4cd71abdfc8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b82aa27e-7862-46e0-ac9b-d4cd71abdfc8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xff2dcdd0243f9f9d617d37df2e8c12dd0bb6267267b3d21bd9ff903ffa112899","name":"Andrea Arr","registered_at":"2026-06-20T15:51:14Z","symbol":"NIM1646903","token_address":"0xd71df4df19ddc18a3f9a71830b56528e3dd4e1ab","type":"artist","uuid":"b82aa27e-7862-46e0-ac9b-d4cd71abdfc8"}
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 0xff2dcdd0243f9f9d617d37df2e8c12dd0bb6267267b3d21bd9ff903ffa112899. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b82aa27e-7862-46e0-ac9b-d4cd71abdfc8.json and https://artists.proofprofile.net/proofs/artist/b82aa27e-7862-46e0-ac9b-d4cd71abdfc8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xff2dcdd0243f9f9d617d37df2e8c12dd0bb6267267b3d21bd9ff903ffa112899","name":"Andrea Arr","registered_at":"2026-06-20T15:51:14Z","symbol":"NIM1646903","token_address":"0xd71df4df19ddc18a3f9a71830b56528e3dd4e1ab","type":"artist","uuid":"b82aa27e-7862-46e0-ac9b-d4cd71abdfc8"}
album: Mi reloj (Demo)
  type: MusicAlbum
  date published: 2023-01-07
album: una que todos se saben
  type: MusicAlbum
  date published: 2023-03-28
album: por si aún te lo preguntas
  type: MusicAlbum
  date published: 2023-06-09
album: 3:00 am
  type: MusicAlbum
  date published: 2023-12-04
album: Mi reloj
  type: MusicAlbum
  date published: 2023-12-15
album: CONTRASTES
  type: MusicAlbum
  date published: 2024-06-03
album: Fue Mentira
  type: MusicAlbum
  date published: 2024-10-05
album: Crónico
  type: MusicAlbum
  date published: 2025-03-30
album: 1 minuto
  type: MusicAlbum
  date published: 2025-06-27
album: Una y otra vez
  type: MusicAlbum
  date published: 2025-08-15