Pedro Cabrera
type: MusicGroup
description: Pedro Cabrera (born 26 April 1927) is a Spanish fencer. He competed in the individual and team épée events at the 1960 Summer Olympics. He competed at the 1959 Mediterranean Games where he won a bronz
popularity: 8
followers: 30
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x465f63877fa17e81de512c18a3db9f9ac05f0116bfbcc821539c2961ff549323
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/5715f94d-e8b9-4e93-a80a-8fab9fb0ebb0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5715f94d-e8b9-4e93-a80a-8fab9fb0ebb0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5715f94d-e8b9-4e93-a80a-8fab9fb0ebb0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x465f63877fa17e81de512c18a3db9f9ac05f0116bfbcc821539c2961ff549323","name":"Pedro Cabrera","registered_at":"2026-06-16T20:04:37Z","symbol":"NIM1160913","token_address":"0xcbaf0a57533cb288de3b719e2cdeae07cdcf45fc","type":"artist","uuid":"5715f94d-e8b9-4e93-a80a-8fab9fb0ebb0"}
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 0x465f63877fa17e81de512c18a3db9f9ac05f0116bfbcc821539c2961ff549323. 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/5715f94d-e8b9-4e93-a80a-8fab9fb0ebb0.json and https://artists.proofprofile.net/proofs/artist/5715f94d-e8b9-4e93-a80a-8fab9fb0ebb0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x465f63877fa17e81de512c18a3db9f9ac05f0116bfbcc821539c2961ff549323","name":"Pedro Cabrera","registered_at":"2026-06-16T20:04:37Z","symbol":"NIM1160913","token_address":"0xcbaf0a57533cb288de3b719e2cdeae07cdcf45fc","type":"artist","uuid":"5715f94d-e8b9-4e93-a80a-8fab9fb0ebb0"}
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