Ensemble Anonymus (Llibre Vermell)
type: MusicGroup
genre: medieval
popularity: 2
followers: 108
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3cbcbf16a60914ef5d6c02c51d695af6d08a3ce1a588e31fc27f43452d1a1eeb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9fe0185-47d0-4565-a09f-f0bcef2b1290.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9fe0185-47d0-4565-a09f-f0bcef2b1290.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c9fe0185-47d0-4565-a09f-f0bcef2b1290
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3cbcbf16a60914ef5d6c02c51d695af6d08a3ce1a588e31fc27f43452d1a1eeb","name":"Ensemble Anonymus (Llibre Vermell)","registered_at":"2026-06-20T22:28:08Z","symbol":"NIM1734260","token_address":"0xd402fa7fb380f4404c99819b6dfe8faeb38c4102","type":"artist","uuid":"c9fe0185-47d0-4565-a09f-f0bcef2b1290"}
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 0x3cbcbf16a60914ef5d6c02c51d695af6d08a3ce1a588e31fc27f43452d1a1eeb. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9fe0185-47d0-4565-a09f-f0bcef2b1290.json and https://artists.proofprofile.net/proofs/artist/c9fe0185-47d0-4565-a09f-f0bcef2b1290.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0x3cbcbf16a60914ef5d6c02c51d695af6d08a3ce1a588e31fc27f43452d1a1eeb","name":"Ensemble Anonymus (Llibre Vermell)","registered_at":"2026-06-20T22:28:08Z","symbol":"NIM1734260","token_address":"0xd402fa7fb380f4404c99819b6dfe8faeb38c4102","type":"artist","uuid":"c9fe0185-47d0-4565-a09f-f0bcef2b1290"}
album: Catalonian Pilgrimage Songs & Dances From The 14th Century (Chants & Danses de Pèlerinage en Catalogne au XIV Siècle)
  type: MusicAlbum
  date published: 1995