Daniel Marco
type: MusicGroup
description: Daniel Marco (born 31 January 1966) is a former professional tennis player from Spain. Biography Marco grew up in the Moroccan city of Tangier, where he was born in 1966. The son of a competitive swi
popularity: 5
followers: 1015
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa95f79ced1f7f96c977e76d64c247b319b2afd4df430fab68626ef04d5f2bb79
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6ea4a55-a9ea-4c72-a8a4-d46601ad5707.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6ea4a55-a9ea-4c72-a8a4-d46601ad5707.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d6ea4a55-a9ea-4c72-a8a4-d46601ad5707
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa95f79ced1f7f96c977e76d64c247b319b2afd4df430fab68626ef04d5f2bb79","name":"Daniel Marco","registered_at":"2026-06-21T03:09:10Z","symbol":"NIM1800413","token_address":"0x507c105497686194ccec3ff67020cf9e9c497533","type":"artist","uuid":"d6ea4a55-a9ea-4c72-a8a4-d46601ad5707"}
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 0xa95f79ced1f7f96c977e76d64c247b319b2afd4df430fab68626ef04d5f2bb79. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6ea4a55-a9ea-4c72-a8a4-d46601ad5707.json and https://artists.proofprofile.net/proofs/artist/d6ea4a55-a9ea-4c72-a8a4-d46601ad5707.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0xa95f79ced1f7f96c977e76d64c247b319b2afd4df430fab68626ef04d5f2bb79","name":"Daniel Marco","registered_at":"2026-06-21T03:09:10Z","symbol":"NIM1800413","token_address":"0x507c105497686194ccec3ff67020cf9e9c497533","type":"artist","uuid":"d6ea4a55-a9ea-4c72-a8a4-d46601ad5707"}
album: Tú Acababas De Venir De Un Viaje En El Tiempo
  type: MusicAlbum
  date published: 2015-01-27