Mister Castle
type: MusicGroup
genre: alternative r&b
popularity: 2
followers: 80
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d673ed5a7ba008e9219fc08adbdbd2877d69c16fc226746ad7c13bb7dd18a24
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953980
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953980
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ca1f708-ff2a-42bb-8e0e-15f623fcb247.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ca1f708-ff2a-42bb-8e0e-15f623fcb247.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2ca1f708-ff2a-42bb-8e0e-15f623fcb247
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T17:16:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2d673ed5a7ba008e9219fc08adbdbd2877d69c16fc226746ad7c13bb7dd18a24","name":"Mister Castle","registered_at":"2026-06-16T05:05:10Z","symbol":"NIM0946254","token_address":"0x79f63caad6892a1eb75056a019ac776eebc22ea6","type":"artist","uuid":"2ca1f708-ff2a-42bb-8e0e-15f623fcb247"}
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 0x2d673ed5a7ba008e9219fc08adbdbd2877d69c16fc226746ad7c13bb7dd18a24. Chain 2 (Bitcoin): anchored in block 953980 (2026-06-16T17:16:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ca1f708-ff2a-42bb-8e0e-15f623fcb247.json and https://artists.proofprofile.net/proofs/artist/2ca1f708-ff2a-42bb-8e0e-15f623fcb247.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T17:16:51Z
  text: {"copyright_id":"0x2d673ed5a7ba008e9219fc08adbdbd2877d69c16fc226746ad7c13bb7dd18a24","name":"Mister Castle","registered_at":"2026-06-16T05:05:10Z","symbol":"NIM0946254","token_address":"0x79f63caad6892a1eb75056a019ac776eebc22ea6","type":"artist","uuid":"2ca1f708-ff2a-42bb-8e0e-15f623fcb247"}
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