Collegium Musicum '23
type: MusicGroup
popularity: 6
followers: 21
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x27da4c52ee7912a21f9e0b9f257c9e3c949e9cf67769c9e5d551a3040acb126a
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/c212f28c-b3c8-4fda-b94c-a1d14fd423c1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c212f28c-b3c8-4fda-b94c-a1d14fd423c1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c212f28c-b3c8-4fda-b94c-a1d14fd423c1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x27da4c52ee7912a21f9e0b9f257c9e3c949e9cf67769c9e5d551a3040acb126a","name":"Collegium Musicum '23","registered_at":"2026-06-20T19:57:48Z","symbol":"NIM1696651","token_address":"0x0a135ef41afd7db24a38c375877f1fb5ebae8f99","type":"artist","uuid":"c212f28c-b3c8-4fda-b94c-a1d14fd423c1"}
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 0x27da4c52ee7912a21f9e0b9f257c9e3c949e9cf67769c9e5d551a3040acb126a. 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/c212f28c-b3c8-4fda-b94c-a1d14fd423c1.json and https://artists.proofprofile.net/proofs/artist/c212f28c-b3c8-4fda-b94c-a1d14fd423c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x27da4c52ee7912a21f9e0b9f257c9e3c949e9cf67769c9e5d551a3040acb126a","name":"Collegium Musicum '23","registered_at":"2026-06-20T19:57:48Z","symbol":"NIM1696651","token_address":"0x0a135ef41afd7db24a38c375877f1fb5ebae8f99","type":"artist","uuid":"c212f28c-b3c8-4fda-b94c-a1d14fd423c1"}