Ed Larkin
type: MusicGroup
description: Edward Francis Larkin (July 1, 1885 – March 28, 1934) was an American Major League Baseball catcher. He played for the Philadelphia Athletics during the season. References External links Category:
popularity: 14
followers: 83
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8680cbaf36373b1f4abfe65ce2faff500eedc1ab9755a84b0ece4950f240ddc7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/42619d23-1e90-49b2-b024-7af8b04b15b1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/42619d23-1e90-49b2-b024-7af8b04b15b1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/42619d23-1e90-49b2-b024-7af8b04b15b1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8680cbaf36373b1f4abfe65ce2faff500eedc1ab9755a84b0ece4950f240ddc7","name":"Ed Larkin","registered_at":"2026-06-14T11:24:10Z","symbol":"NIM0437681","token_address":"0x099cfabebff9d572d42d238827f971cac2c0ccaf","type":"artist","uuid":"42619d23-1e90-49b2-b024-7af8b04b15b1"}
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 0x8680cbaf36373b1f4abfe65ce2faff500eedc1ab9755a84b0ece4950f240ddc7. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42619d23-1e90-49b2-b024-7af8b04b15b1.json and https://artists.proofprofile.net/proofs/artist/42619d23-1e90-49b2-b024-7af8b04b15b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x8680cbaf36373b1f4abfe65ce2faff500eedc1ab9755a84b0ece4950f240ddc7","name":"Ed Larkin","registered_at":"2026-06-14T11:24:10Z","symbol":"NIM0437681","token_address":"0x099cfabebff9d572d42d238827f971cac2c0ccaf","type":"artist","uuid":"42619d23-1e90-49b2-b024-7af8b04b15b1"}