Oscar Medina
type: MusicGroup
popularity: 3
followers: 4319
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x302ec71c470d1f627c63221d141f743914e41d665a5f3268ddc96ba1f4cf74ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2b09a46-428d-4b22-988f-5856eca12b73.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2b09a46-428d-4b22-988f-5856eca12b73.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b2b09a46-428d-4b22-988f-5856eca12b73
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x302ec71c470d1f627c63221d141f743914e41d665a5f3268ddc96ba1f4cf74ab","name":"Oscar Medina","registered_at":"2026-06-20T13:25:09Z","symbol":"NIM1620099","token_address":"0xc79b412eb4a38151e2f4a44a8d9668cf76965f58","type":"artist","uuid":"b2b09a46-428d-4b22-988f-5856eca12b73"}
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 0x302ec71c470d1f627c63221d141f743914e41d665a5f3268ddc96ba1f4cf74ab. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2b09a46-428d-4b22-988f-5856eca12b73.json and https://artists.proofprofile.net/proofs/artist/b2b09a46-428d-4b22-988f-5856eca12b73.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0x302ec71c470d1f627c63221d141f743914e41d665a5f3268ddc96ba1f4cf74ab","name":"Oscar Medina","registered_at":"2026-06-20T13:25:09Z","symbol":"NIM1620099","token_address":"0xc79b412eb4a38151e2f4a44a8d9668cf76965f58","type":"artist","uuid":"b2b09a46-428d-4b22-988f-5856eca12b73"}
album: Rule Concede
  type: MusicAlbum
  date published: 2019-06-25