Ismael Sarmiento
type: MusicGroup
description: José Ismael Sarmiento Riaño (born July 15, 1973 in Cómbita, Boyacá) is a retired male road cyclist from Colombia. He was nicknamed "Pocholo" during his career. Major results 1995 2nd in Stage 8 C
popularity: 12
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8f74a1c534b2ac0c4023f8734f47c04665a8b6b975c1bc51e36c72c0e128c6e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953786
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953786
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/db771ead-08c5-45ab-ae4f-2e466e811f75.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/db771ead-08c5-45ab-ae4f-2e466e811f75.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/db771ead-08c5-45ab-ae4f-2e466e811f75
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T12:56:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe8f74a1c534b2ac0c4023f8734f47c04665a8b6b975c1bc51e36c72c0e128c6e","name":"Ismael Sarmiento","registered_at":"2026-06-15T03:33:39Z","symbol":"NIM0669023","token_address":"0x9c4fa80bcefb66e05dd1f750b0ca991789c7ae72","type":"artist","uuid":"db771ead-08c5-45ab-ae4f-2e466e811f75"}
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 0xe8f74a1c534b2ac0c4023f8734f47c04665a8b6b975c1bc51e36c72c0e128c6e. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db771ead-08c5-45ab-ae4f-2e466e811f75.json and https://artists.proofprofile.net/proofs/artist/db771ead-08c5-45ab-ae4f-2e466e811f75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T12:56:12Z
  text: {"copyright_id":"0xe8f74a1c534b2ac0c4023f8734f47c04665a8b6b975c1bc51e36c72c0e128c6e","name":"Ismael Sarmiento","registered_at":"2026-06-15T03:33:39Z","symbol":"NIM0669023","token_address":"0x9c4fa80bcefb66e05dd1f750b0ca991789c7ae72","type":"artist","uuid":"db771ead-08c5-45ab-ae4f-2e466e811f75"}