Martim Carvalho
type: MusicGroup
popularity: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xded30844be6d20db73a0290c563745853e1f4e8b6ac1aa31215b4b72aa2a8372
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954058
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954058
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4507d233-4f03-4a67-b5b9-06aff209e679.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4507d233-4f03-4a67-b5b9-06aff209e679.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4507d233-4f03-4a67-b5b9-06aff209e679
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T06:34:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xded30844be6d20db73a0290c563745853e1f4e8b6ac1aa31215b4b72aa2a8372","name":"Martim Carvalho","registered_at":"2026-06-16T13:38:20Z","symbol":"NIM1068733","token_address":"0xedde31a3e18eb29e8210a42dec23ff45b352e5e7","type":"artist","uuid":"4507d233-4f03-4a67-b5b9-06aff209e679"}
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 0xded30844be6d20db73a0290c563745853e1f4e8b6ac1aa31215b4b72aa2a8372. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4507d233-4f03-4a67-b5b9-06aff209e679.json and https://artists.proofprofile.net/proofs/artist/4507d233-4f03-4a67-b5b9-06aff209e679.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xded30844be6d20db73a0290c563745853e1f4e8b6ac1aa31215b4b72aa2a8372","name":"Martim Carvalho","registered_at":"2026-06-16T13:38:20Z","symbol":"NIM1068733","token_address":"0xedde31a3e18eb29e8210a42dec23ff45b352e5e7","type":"artist","uuid":"4507d233-4f03-4a67-b5b9-06aff209e679"}
album: Move on!
  type: MusicAlbum
  date published: 2025-03-27