Joana Subirats
type: MusicGroup
popularity: 29
followers: 51
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x870411930ba073306215aa3f900f3bfca01f5074880ac801fc057b82591ba568
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d1cdc2c4-92ab-4be7-b5a2-146376fb7d96.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d1cdc2c4-92ab-4be7-b5a2-146376fb7d96.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d1cdc2c4-92ab-4be7-b5a2-146376fb7d96
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x870411930ba073306215aa3f900f3bfca01f5074880ac801fc057b82591ba568","name":"Joana Subirats","registered_at":"2026-06-12T10:28:21Z","symbol":"NIM0270071","token_address":"0xb9a21e32e3e56d019f4f7b44f3ed09cd88189cd5","type":"artist","uuid":"d1cdc2c4-92ab-4be7-b5a2-146376fb7d96"}
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 0x870411930ba073306215aa3f900f3bfca01f5074880ac801fc057b82591ba568. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1cdc2c4-92ab-4be7-b5a2-146376fb7d96.json and https://artists.proofprofile.net/proofs/artist/d1cdc2c4-92ab-4be7-b5a2-146376fb7d96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x870411930ba073306215aa3f900f3bfca01f5074880ac801fc057b82591ba568","name":"Joana Subirats","registered_at":"2026-06-12T10:28:21Z","symbol":"NIM0270071","token_address":"0xb9a21e32e3e56d019f4f7b44f3ed09cd88189cd5","type":"artist","uuid":"d1cdc2c4-92ab-4be7-b5a2-146376fb7d96"}