Ricardo Martins
type: MusicGroup
description: Ricardo Manuel Cardoso Martins (born 24 January 1990) is a professional footballer who plays as a midfielder for Dynamo Puerto. Club career Portugal Born in El Tigre, Anzoátegui to Portuguese parents
popularity: 5
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x72f5203f3a5383a7871272b4c1e938768b0f0b26aa5880b330d4972285a40066
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/610427f9-b44a-47b2-a028-f04fb22606bf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/610427f9-b44a-47b2-a028-f04fb22606bf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/610427f9-b44a-47b2-a028-f04fb22606bf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x72f5203f3a5383a7871272b4c1e938768b0f0b26aa5880b330d4972285a40066","name":"Ricardo Martins","registered_at":"2026-06-16T23:20:39Z","symbol":"NIM1207678","token_address":"0x1ab16e4af25aa8705f9f511657479e097edad87f","type":"artist","uuid":"610427f9-b44a-47b2-a028-f04fb22606bf"}
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 0x72f5203f3a5383a7871272b4c1e938768b0f0b26aa5880b330d4972285a40066. 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/610427f9-b44a-47b2-a028-f04fb22606bf.json and https://artists.proofprofile.net/proofs/artist/610427f9-b44a-47b2-a028-f04fb22606bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x72f5203f3a5383a7871272b4c1e938768b0f0b26aa5880b330d4972285a40066","name":"Ricardo Martins","registered_at":"2026-06-16T23:20:39Z","symbol":"NIM1207678","token_address":"0x1ab16e4af25aa8705f9f511657479e097edad87f","type":"artist","uuid":"610427f9-b44a-47b2-a028-f04fb22606bf"}