JOHN CARL
type: MusicGroup
description: John Carl (May 28, 1854 – October 2, 1927) was an American baseball player. Carl played in one game for the 1874 Baltimore Canaries of the National Association. He was 0-for-3 that day, and the Cana
popularity: 13
followers: 42
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd7cbe118a2f5392067fe1fb470fc8f348566299a123bfa6b595c9586c5f8034c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2acc9be2-86ec-41c3-afc7-1099a9595b9a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2acc9be2-86ec-41c3-afc7-1099a9595b9a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2acc9be2-86ec-41c3-afc7-1099a9595b9a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd7cbe118a2f5392067fe1fb470fc8f348566299a123bfa6b595c9586c5f8034c","name":"JOHN CARL","registered_at":"2026-06-14T08:58:25Z","symbol":"NIM0402918","token_address":"0x147230a65d61d40a35984f32d6604add790b8531","type":"artist","uuid":"2acc9be2-86ec-41c3-afc7-1099a9595b9a"}
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 0xd7cbe118a2f5392067fe1fb470fc8f348566299a123bfa6b595c9586c5f8034c. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2acc9be2-86ec-41c3-afc7-1099a9595b9a.json and https://artists.proofprofile.net/proofs/artist/2acc9be2-86ec-41c3-afc7-1099a9595b9a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:37:06Z
  text: {"copyright_id":"0xd7cbe118a2f5392067fe1fb470fc8f348566299a123bfa6b595c9586c5f8034c","name":"JOHN CARL","registered_at":"2026-06-14T08:58:25Z","symbol":"NIM0402918","token_address":"0x147230a65d61d40a35984f32d6604add790b8531","type":"artist","uuid":"2acc9be2-86ec-41c3-afc7-1099a9595b9a"}
album: Undisputed
  type: MusicAlbum
  date published: 2025-08-29