St Andrews Madrigal Group
type: MusicGroup
genre: choral
popularity: 3
followers: 123
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f47578d867eb79a988ce1773d5ac829d3e08478183465c2b9fb253d14b628d7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954031
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954031
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3ab71f05-470d-48ef-b01c-2fd489a3251d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3ab71f05-470d-48ef-b01c-2fd489a3251d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3ab71f05-470d-48ef-b01c-2fd489a3251d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:43:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3f47578d867eb79a988ce1773d5ac829d3e08478183465c2b9fb253d14b628d7","name":"St Andrews Madrigal Group","registered_at":"2026-06-16T10:02:09Z","symbol":"NIM1017172","token_address":"0x04fa219ce1b245af93c8a146d789b4bfedd35b1e","type":"artist","uuid":"3ab71f05-470d-48ef-b01c-2fd489a3251d"}
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 0x3f47578d867eb79a988ce1773d5ac829d3e08478183465c2b9fb253d14b628d7. 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/3ab71f05-470d-48ef-b01c-2fd489a3251d.json and https://artists.proofprofile.net/proofs/artist/3ab71f05-470d-48ef-b01c-2fd489a3251d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x3f47578d867eb79a988ce1773d5ac829d3e08478183465c2b9fb253d14b628d7","name":"St Andrews Madrigal Group","registered_at":"2026-06-16T10:02:09Z","symbol":"NIM1017172","token_address":"0x04fa219ce1b245af93c8a146d789b4bfedd35b1e","type":"artist","uuid":"3ab71f05-470d-48ef-b01c-2fd489a3251d"}
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