Douglas e Marcelle
type: MusicGroup
popularity: 2
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2e4d1e180dde6ff134bc09f3dce8f6ea83e64e17107222356df861434a05f82a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953857
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953857
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03043189-40e1-4ee6-bf30-91dbe3d3fcf3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03043189-40e1-4ee6-bf30-91dbe3d3fcf3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/03043189-40e1-4ee6-bf30-91dbe3d3fcf3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T23:34:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2e4d1e180dde6ff134bc09f3dce8f6ea83e64e17107222356df861434a05f82a","name":"Douglas e Marcelle","registered_at":"2026-06-15T14:29:34Z","symbol":"NIM0737264","token_address":"0x68bee873ba9f7fa5e6410fa5c89ed2a80d2b0927","type":"artist","uuid":"03043189-40e1-4ee6-bf30-91dbe3d3fcf3"}
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 0x2e4d1e180dde6ff134bc09f3dce8f6ea83e64e17107222356df861434a05f82a. Chain 2 (Bitcoin): anchored in block 953857 (2026-06-15T23:34:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03043189-40e1-4ee6-bf30-91dbe3d3fcf3.json and https://artists.proofprofile.net/proofs/artist/03043189-40e1-4ee6-bf30-91dbe3d3fcf3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T23:34:38Z
  text: {"copyright_id":"0x2e4d1e180dde6ff134bc09f3dce8f6ea83e64e17107222356df861434a05f82a","name":"Douglas e Marcelle","registered_at":"2026-06-15T14:29:34Z","symbol":"NIM0737264","token_address":"0x68bee873ba9f7fa5e6410fa5c89ed2a80d2b0927","type":"artist","uuid":"03043189-40e1-4ee6-bf30-91dbe3d3fcf3"}
album: Por Enquanto
  type: MusicAlbum
  date published: 2022-05-09