Malcolm Sinclair
type: MusicGroup
genre: classical
description: Malcolm Sinclair may refer to: Malcolm Sinclair (Swedish nobleman) (1690–1739), whose assassination caused the Russo–Swedish War of 1741–1743 Malcolm Sinclair, 20th Earl of Caithness (born 1948), Bri
popularity: 9
followers: 40
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb40c10dace5084f9cf7e1469e10142154b1b9b198dda586a591d640f280b3863
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953963
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953963
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/27eea65f-1b14-4ed3-9443-c5f94762cfba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/27eea65f-1b14-4ed3-9443-c5f94762cfba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/27eea65f-1b14-4ed3-9443-c5f94762cfba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T15:12:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb40c10dace5084f9cf7e1469e10142154b1b9b198dda586a591d640f280b3863","name":"Malcolm Sinclair","registered_at":"2026-06-16T03:30:52Z","symbol":"NIM0923723","token_address":"0x70e1e98231e4f8782bafcb1a4fe7eead0d730d62","type":"artist","uuid":"27eea65f-1b14-4ed3-9443-c5f94762cfba"}
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 0xb40c10dace5084f9cf7e1469e10142154b1b9b198dda586a591d640f280b3863. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27eea65f-1b14-4ed3-9443-c5f94762cfba.json and https://artists.proofprofile.net/proofs/artist/27eea65f-1b14-4ed3-9443-c5f94762cfba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0xb40c10dace5084f9cf7e1469e10142154b1b9b198dda586a591d640f280b3863","name":"Malcolm Sinclair","registered_at":"2026-06-16T03:30:52Z","symbol":"NIM0923723","token_address":"0x70e1e98231e4f8782bafcb1a4fe7eead0d730d62","type":"artist","uuid":"27eea65f-1b14-4ed3-9443-c5f94762cfba"}