Marco Kallas
type: MusicGroup
genre: acid techno
genre: hard techno
genre: techno
popularity: 2
followers: 173
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x541c3fcde3a78ac6aafb152e9f96e236561cfe3f47dc066d63ff354529ad22d2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953999
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953999
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31a7020a-a47e-4d94-8c20-b7d277a43cdd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31a7020a-a47e-4d94-8c20-b7d277a43cdd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/31a7020a-a47e-4d94-8c20-b7d277a43cdd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:20:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x541c3fcde3a78ac6aafb152e9f96e236561cfe3f47dc066d63ff354529ad22d2","name":"Marco Kallas","registered_at":"2026-06-16T06:54:02Z","symbol":"NIM0972258","token_address":"0x7a33c2b845a29f9f383dfdc1abd103afe6b76c59","type":"artist","uuid":"31a7020a-a47e-4d94-8c20-b7d277a43cdd"}
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 0x541c3fcde3a78ac6aafb152e9f96e236561cfe3f47dc066d63ff354529ad22d2. Chain 2 (Bitcoin): anchored in block 954000 (2026-06-16T20:18:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31a7020a-a47e-4d94-8c20-b7d277a43cdd.json and https://artists.proofprofile.net/proofs/artist/31a7020a-a47e-4d94-8c20-b7d277a43cdd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:18:46Z
  text: {"copyright_id":"0x541c3fcde3a78ac6aafb152e9f96e236561cfe3f47dc066d63ff354529ad22d2","name":"Marco Kallas","registered_at":"2026-06-16T06:54:02Z","symbol":"NIM0972258","token_address":"0x7a33c2b845a29f9f383dfdc1abd103afe6b76c59","type":"artist","uuid":"31a7020a-a47e-4d94-8c20-b7d277a43cdd"}
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