Maria K.
type: MusicGroup
popularity: 2
followers: 257
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd67b6300275cddb160d0f35afb8642e8c66cd0a4e88b36ca56778a36f0a7180f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953996
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953996
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2f1bd663-a011-4f88-aecc-1a7edadf6341.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2f1bd663-a011-4f88-aecc-1a7edadf6341.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2f1bd663-a011-4f88-aecc-1a7edadf6341
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:04:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd67b6300275cddb160d0f35afb8642e8c66cd0a4e88b36ca56778a36f0a7180f","name":"Maria K.","registered_at":"2026-06-16T06:16:46Z","symbol":"NIM0963358","token_address":"0x5b754f83515316ee7ca02a03f667ca5c5a914113","type":"artist","uuid":"2f1bd663-a011-4f88-aecc-1a7edadf6341"}
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 0xd67b6300275cddb160d0f35afb8642e8c66cd0a4e88b36ca56778a36f0a7180f. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2f1bd663-a011-4f88-aecc-1a7edadf6341.json and https://artists.proofprofile.net/proofs/artist/2f1bd663-a011-4f88-aecc-1a7edadf6341.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:04:35Z
  text: {"copyright_id":"0xd67b6300275cddb160d0f35afb8642e8c66cd0a4e88b36ca56778a36f0a7180f","name":"Maria K.","registered_at":"2026-06-16T06:16:46Z","symbol":"NIM0963358","token_address":"0x5b754f83515316ee7ca02a03f667ca5c5a914113","type":"artist","uuid":"2f1bd663-a011-4f88-aecc-1a7edadf6341"}
album: Starbucks Smile
  type: MusicAlbum
  date published: 2011-06-24
album: Back to Life - Single
  type: MusicAlbum
  date published: 2015-01-25