Tom Baker
type: MusicGroup
description: Thomas Stewart Baker (born 20 January 1934) is an English actor and writer. He is best known for playing the fourth incarnation of the Doctor in the BBC science fiction series Doctor Who from 1974 to
popularity: 11
followers: 77
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5abd7e1acee12b698bc49f8906ed4b689dfbbb4d90fe2bd8ad6e652d4b1c493a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953741
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953741
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9ad636ae-8a9f-4a36-8d94-1aeb0442a357.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9ad636ae-8a9f-4a36-8d94-1aeb0442a357.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9ad636ae-8a9f-4a36-8d94-1aeb0442a357
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5abd7e1acee12b698bc49f8906ed4b689dfbbb4d90fe2bd8ad6e652d4b1c493a","name":"Tom Baker","registered_at":"2026-06-14T20:45:57Z","symbol":"NIM0571663","token_address":"0x46ca92d7e38c3b5e13f3c830181b0f36fe760a26","type":"artist","uuid":"9ad636ae-8a9f-4a36-8d94-1aeb0442a357"}
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 0x5abd7e1acee12b698bc49f8906ed4b689dfbbb4d90fe2bd8ad6e652d4b1c493a. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ad636ae-8a9f-4a36-8d94-1aeb0442a357.json and https://artists.proofprofile.net/proofs/artist/9ad636ae-8a9f-4a36-8d94-1aeb0442a357.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:44:49Z
  text: {"copyright_id":"0x5abd7e1acee12b698bc49f8906ed4b689dfbbb4d90fe2bd8ad6e652d4b1c493a","name":"Tom Baker","registered_at":"2026-06-14T20:45:57Z","symbol":"NIM0571663","token_address":"0x46ca92d7e38c3b5e13f3c830181b0f36fe760a26","type":"artist","uuid":"9ad636ae-8a9f-4a36-8d94-1aeb0442a357"}