Angel Angelov
type: MusicGroup
genre: medieval
description: Anghei Anghelov (more frequently transliterated as Angel Angelov) (; born July 10, 1948) is a former boxer from Bulgaria, who won a silver medal in the light welterweight division the 1972 Summer Olym
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8b302221aab6acce75c1afaf5112bf6d330715cc0871b2b1cc151b4e3b141060
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ade6bd2e-4a46-455a-9923-2fd5c357a3cf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ade6bd2e-4a46-455a-9923-2fd5c357a3cf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ade6bd2e-4a46-455a-9923-2fd5c357a3cf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8b302221aab6acce75c1afaf5112bf6d330715cc0871b2b1cc151b4e3b141060","name":"Angel Angelov","registered_at":"2026-06-20T10:50:19Z","symbol":"NIM1594862","token_address":"0xb2153f5724faa304cd134a669a7c8d60aac01401","type":"artist","uuid":"ade6bd2e-4a46-455a-9923-2fd5c357a3cf"}
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 0x8b302221aab6acce75c1afaf5112bf6d330715cc0871b2b1cc151b4e3b141060. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ade6bd2e-4a46-455a-9923-2fd5c357a3cf.json and https://artists.proofprofile.net/proofs/artist/ade6bd2e-4a46-455a-9923-2fd5c357a3cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0x8b302221aab6acce75c1afaf5112bf6d330715cc0871b2b1cc151b4e3b141060","name":"Angel Angelov","registered_at":"2026-06-20T10:50:19Z","symbol":"NIM1594862","token_address":"0xb2153f5724faa304cd134a669a7c8d60aac01401","type":"artist","uuid":"ade6bd2e-4a46-455a-9923-2fd5c357a3cf"}