Leo Thomas
type: MusicGroup
description: Leo Raymond Thomas (July 26, 1923 – March 5, 2001), nicknamed "Tommy", was an American professional baseball player. A third baseman, he appeared in 95 games in Major League Baseball for the St. Louis
popularity: 5
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe862d64eeb3344fad0b6abc088278f0901554d70a3fb462af332826f0742f802
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/485c7313-64af-4ff9-bf81-89f4054c7885.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/485c7313-64af-4ff9-bf81-89f4054c7885.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/485c7313-64af-4ff9-bf81-89f4054c7885
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe862d64eeb3344fad0b6abc088278f0901554d70a3fb462af332826f0742f802","name":"Leo Thomas","registered_at":"2026-06-16T14:50:08Z","symbol":"NIM1085866","token_address":"0xa5309204872922b9522fe5eea657947e29e32ff7","type":"artist","uuid":"485c7313-64af-4ff9-bf81-89f4054c7885"}
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 0xe862d64eeb3344fad0b6abc088278f0901554d70a3fb462af332826f0742f802. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/485c7313-64af-4ff9-bf81-89f4054c7885.json and https://artists.proofprofile.net/proofs/artist/485c7313-64af-4ff9-bf81-89f4054c7885.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xe862d64eeb3344fad0b6abc088278f0901554d70a3fb462af332826f0742f802","name":"Leo Thomas","registered_at":"2026-06-16T14:50:08Z","symbol":"NIM1085866","token_address":"0xa5309204872922b9522fe5eea657947e29e32ff7","type":"artist","uuid":"485c7313-64af-4ff9-bf81-89f4054c7885"}
album: Dark Clouds
  type: MusicAlbum
  date published: 2024-08-20