Ensemble Comtessa de Dia
type: MusicGroup
genre: gregorian chant
genre: medieval
popularity: 2
followers: 40
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x580d02b822d784302f064c2c4fae2519904fb8f2c1a9f35feb7f9587878144d2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954063
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954063
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/479888ea-95ca-46e3-adb7-fe407d33e274.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/479888ea-95ca-46e3-adb7-fe407d33e274.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/479888ea-95ca-46e3-adb7-fe407d33e274
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:49:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x580d02b822d784302f064c2c4fae2519904fb8f2c1a9f35feb7f9587878144d2","name":"Ensemble Comtessa de Dia","registered_at":"2026-06-16T14:40:57Z","symbol":"NIM1083676","token_address":"0x47ee8517f3cb8dcd1f14cacde9a230e3e31736d7","type":"artist","uuid":"479888ea-95ca-46e3-adb7-fe407d33e274"}
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 0x580d02b822d784302f064c2c4fae2519904fb8f2c1a9f35feb7f9587878144d2. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/479888ea-95ca-46e3-adb7-fe407d33e274.json and https://artists.proofprofile.net/proofs/artist/479888ea-95ca-46e3-adb7-fe407d33e274.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x580d02b822d784302f064c2c4fae2519904fb8f2c1a9f35feb7f9587878144d2","name":"Ensemble Comtessa de Dia","registered_at":"2026-06-16T14:40:57Z","symbol":"NIM1083676","token_address":"0x47ee8517f3cb8dcd1f14cacde9a230e3e31736d7","type":"artist","uuid":"479888ea-95ca-46e3-adb7-fe407d33e274"}