Ludus Instrumentalis
type: MusicGroup
genre: chamber music
popularity: 2
followers: 52
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3851d6d1df4bb079fab3f04596376663b754dd051daecc19ab72adb98bb3ded1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8f57694f-eb1d-4207-a136-80809d17797e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8f57694f-eb1d-4207-a136-80809d17797e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8f57694f-eb1d-4207-a136-80809d17797e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3851d6d1df4bb079fab3f04596376663b754dd051daecc19ab72adb98bb3ded1","name":"Ludus Instrumentalis","registered_at":"2026-06-17T15:41:16Z","symbol":"NIM1441519","token_address":"0x7f7c9c022f46ece72ed3f2b36de3875cc5cbebf0","type":"artist","uuid":"8f57694f-eb1d-4207-a136-80809d17797e"}
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 0x3851d6d1df4bb079fab3f04596376663b754dd051daecc19ab72adb98bb3ded1. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f57694f-eb1d-4207-a136-80809d17797e.json and https://artists.proofprofile.net/proofs/artist/8f57694f-eb1d-4207-a136-80809d17797e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x3851d6d1df4bb079fab3f04596376663b754dd051daecc19ab72adb98bb3ded1","name":"Ludus Instrumentalis","registered_at":"2026-06-17T15:41:16Z","symbol":"NIM1441519","token_address":"0x7f7c9c022f46ece72ed3f2b36de3875cc5cbebf0","type":"artist","uuid":"8f57694f-eb1d-4207-a136-80809d17797e"}