Rafael Campelo
type: MusicGroup
popularity: 7
followers: 70
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x950bfec013ce2ed48f7e4dce907486a0517f3cd9c8516d43cd3e46ce8fc9ede4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c7634528-4918-4c9a-bafb-c0ea8bf64d0d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c7634528-4918-4c9a-bafb-c0ea8bf64d0d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c7634528-4918-4c9a-bafb-c0ea8bf64d0d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x950bfec013ce2ed48f7e4dce907486a0517f3cd9c8516d43cd3e46ce8fc9ede4","name":"Rafael Campelo","registered_at":"2026-06-20T21:46:36Z","symbol":"NIM1724116","token_address":"0x76d86ead378285b128b978527e54a907164fc9df","type":"artist","uuid":"c7634528-4918-4c9a-bafb-c0ea8bf64d0d"}
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 0x950bfec013ce2ed48f7e4dce907486a0517f3cd9c8516d43cd3e46ce8fc9ede4. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7634528-4918-4c9a-bafb-c0ea8bf64d0d.json and https://artists.proofprofile.net/proofs/artist/c7634528-4918-4c9a-bafb-c0ea8bf64d0d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x950bfec013ce2ed48f7e4dce907486a0517f3cd9c8516d43cd3e46ce8fc9ede4","name":"Rafael Campelo","registered_at":"2026-06-20T21:46:36Z","symbol":"NIM1724116","token_address":"0x76d86ead378285b128b978527e54a907164fc9df","type":"artist","uuid":"c7634528-4918-4c9a-bafb-c0ea8bf64d0d"}
album: Tipo Assim
  type: MusicAlbum
  date published: 2021-08-30