Kalle Kaaja
type: MusicGroup
genre: finnish pop
genre: finnish rock
genre: iskelmä
popularity: 2
followers: 220
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe50068d34a524f650471824bc281bcc6a6222e550313ae34e30c07f57a025d88
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6f2a8dd-b26c-441e-b322-c76e0175882e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6f2a8dd-b26c-441e-b322-c76e0175882e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f6f2a8dd-b26c-441e-b322-c76e0175882e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe50068d34a524f650471824bc281bcc6a6222e550313ae34e30c07f57a025d88","name":"Kalle Kaaja","registered_at":"2026-06-21T15:27:28Z","symbol":"NIM1959513","token_address":"0x80a69e9103d2818ad2ebf6ca7d63a21fcf9aaee8","type":"artist","uuid":"f6f2a8dd-b26c-441e-b322-c76e0175882e"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50068d34a524f650471824bc281bcc6a6222e550313ae34e30c07f57a025d88. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6f2a8dd-b26c-441e-b322-c76e0175882e.json and https://artists.proofprofile.net/proofs/artist/f6f2a8dd-b26c-441e-b322-c76e0175882e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
  text: {"copyright_id":"0xe50068d34a524f650471824bc281bcc6a6222e550313ae34e30c07f57a025d88","name":"Kalle Kaaja","registered_at":"2026-06-21T15:27:28Z","symbol":"NIM1959513","token_address":"0x80a69e9103d2818ad2ebf6ca7d63a21fcf9aaee8","type":"artist","uuid":"f6f2a8dd-b26c-441e-b322-c76e0175882e"}
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  date published: 2015-06-29
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