The Stationery Office
type: MusicGroup
description: The Stationery Office (TSO) is a British publishing company created in 1996 when the publishing arm of Her Majesty's Stationery Office was privatised. It is the official publisher and the distributor
popularity: 10
followers: 269
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x577ca951d34b401589912d7d4485abd0748a9c1b0ba5fbbb824cb42402a54430
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/60509208-52eb-41c8-a19a-6b6a798669ea.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/60509208-52eb-41c8-a19a-6b6a798669ea.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/60509208-52eb-41c8-a19a-6b6a798669ea
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x577ca951d34b401589912d7d4485abd0748a9c1b0ba5fbbb824cb42402a54430","name":"The Stationery Office","registered_at":"2026-06-16T23:13:44Z","symbol":"NIM1206028","token_address":"0x1a59cd12892eb9fe2fcfda9f5d621a8b3c1693f0","type":"artist","uuid":"60509208-52eb-41c8-a19a-6b6a798669ea"}
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 0x577ca951d34b401589912d7d4485abd0748a9c1b0ba5fbbb824cb42402a54430. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/60509208-52eb-41c8-a19a-6b6a798669ea.json and https://artists.proofprofile.net/proofs/artist/60509208-52eb-41c8-a19a-6b6a798669ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x577ca951d34b401589912d7d4485abd0748a9c1b0ba5fbbb824cb42402a54430","name":"The Stationery Office","registered_at":"2026-06-16T23:13:44Z","symbol":"NIM1206028","token_address":"0x1a59cd12892eb9fe2fcfda9f5d621a8b3c1693f0","type":"artist","uuid":"60509208-52eb-41c8-a19a-6b6a798669ea"}
album: Life in the United Kingdom: A Guide for New Residents (3rd Edition)
  type: MusicAlbum
  date published: 2013-03-11