Andrew Langtree
type: MusicGroup
genre: musicals
description: Andrew Langtree is an Olivier Award nominated British stage and screen actor from St Helens, Lancashire. He is known for stage performances including Groundhog Day at London's Old Vic Theatre, and on
popularity: 21
followers: 52
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x58e2328f675e41a173231623f75df8f4f1cc27bbc6c7d448629ac34c4740d30d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/66b50b35-9e36-4a28-ab97-be544c77e447.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/66b50b35-9e36-4a28-ab97-be544c77e447.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/66b50b35-9e36-4a28-ab97-be544c77e447
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x58e2328f675e41a173231623f75df8f4f1cc27bbc6c7d448629ac34c4740d30d","name":"Andrew Langtree","registered_at":"2026-06-11T23:13:40Z","symbol":"NIM0133009","token_address":"0x0b77c1e912cd06765dcefda87585aaff2b6c6992","type":"artist","uuid":"66b50b35-9e36-4a28-ab97-be544c77e447"}
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 0x58e2328f675e41a173231623f75df8f4f1cc27bbc6c7d448629ac34c4740d30d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66b50b35-9e36-4a28-ab97-be544c77e447.json and https://artists.proofprofile.net/proofs/artist/66b50b35-9e36-4a28-ab97-be544c77e447.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x58e2328f675e41a173231623f75df8f4f1cc27bbc6c7d448629ac34c4740d30d","name":"Andrew Langtree","registered_at":"2026-06-11T23:13:40Z","symbol":"NIM0133009","token_address":"0x0b77c1e912cd06765dcefda87585aaff2b6c6992","type":"artist","uuid":"66b50b35-9e36-4a28-ab97-be544c77e447"}