Guilherme Cunha Ribeiro
type: MusicGroup
popularity: 17
followers: 258
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4ae9053319343c9c7e031d3b804ac9e0d0ae01fc4f61c3a0b6d6857c1b00b12c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953670
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953670
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/59e2af17-4dda-417b-b76d-0c9cb4491ff1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/59e2af17-4dda-417b-b76d-0c9cb4491ff1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/59e2af17-4dda-417b-b76d-0c9cb4491ff1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T18:07:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4ae9053319343c9c7e031d3b804ac9e0d0ae01fc4f61c3a0b6d6857c1b00b12c","name":"Guilherme Cunha Ribeiro","registered_at":"2026-06-14T13:52:11Z","symbol":"NIM0473003","token_address":"0xddc03f5b9ce6efcacc8dc8e442c9ca25881b3cdd","type":"artist","uuid":"59e2af17-4dda-417b-b76d-0c9cb4491ff1"}
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 0x4ae9053319343c9c7e031d3b804ac9e0d0ae01fc4f61c3a0b6d6857c1b00b12c. Chain 2 (Bitcoin): anchored in block 953670 (2026-06-14T18:07:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59e2af17-4dda-417b-b76d-0c9cb4491ff1.json and https://artists.proofprofile.net/proofs/artist/59e2af17-4dda-417b-b76d-0c9cb4491ff1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T18:07:12Z
  text: {"copyright_id":"0x4ae9053319343c9c7e031d3b804ac9e0d0ae01fc4f61c3a0b6d6857c1b00b12c","name":"Guilherme Cunha Ribeiro","registered_at":"2026-06-14T13:52:11Z","symbol":"NIM0473003","token_address":"0xddc03f5b9ce6efcacc8dc8e442c9ca25881b3cdd","type":"artist","uuid":"59e2af17-4dda-417b-b76d-0c9cb4491ff1"}
album: Dark and Cold
  type: MusicAlbum
  date published: 2019-09-01
album: Free Afternoon
  type: MusicAlbum
  date published: 2019-10-30
album: Living Is Possible
  type: MusicAlbum
  date published: 2021-11-10
album: Hope to find peace
  type: MusicAlbum
  date published: 2024-11-28