Medieval Minstrels
type: MusicGroup
genre: medieval
popularity: 4
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02e77187960d4c7f41dc0af7bacb613dedb359c3d548e8323d743ed3aef87657
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a473a22-81ec-4cb2-ad76-d8dee2a339a3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a473a22-81ec-4cb2-ad76-d8dee2a339a3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4a473a22-81ec-4cb2-ad76-d8dee2a339a3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x02e77187960d4c7f41dc0af7bacb613dedb359c3d548e8323d743ed3aef87657","name":"Medieval Minstrels","registered_at":"2026-06-16T15:28:18Z","symbol":"NIM1094980","token_address":"0x58e74e2f73b44ed8a443944fab622b2ae535620f","type":"artist","uuid":"4a473a22-81ec-4cb2-ad76-d8dee2a339a3"}
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 0x02e77187960d4c7f41dc0af7bacb613dedb359c3d548e8323d743ed3aef87657. 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/4a473a22-81ec-4cb2-ad76-d8dee2a339a3.json and https://artists.proofprofile.net/proofs/artist/4a473a22-81ec-4cb2-ad76-d8dee2a339a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x02e77187960d4c7f41dc0af7bacb613dedb359c3d548e8323d743ed3aef87657","name":"Medieval Minstrels","registered_at":"2026-06-16T15:28:18Z","symbol":"NIM1094980","token_address":"0x58e74e2f73b44ed8a443944fab622b2ae535620f","type":"artist","uuid":"4a473a22-81ec-4cb2-ad76-d8dee2a339a3"}
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