Køya
type: MusicGroup
genre: acid techno
genre: tekno
popularity: 4
followers: 263
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9be8b1f52e2ce235c75fa5fa8bda71b92a4cd31ebf3994dd6d2f51bd9c0bbb2c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe8bb6d2-b451-439b-95f7-84898547e1a1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe8bb6d2-b451-439b-95f7-84898547e1a1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fe8bb6d2-b451-439b-95f7-84898547e1a1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9be8b1f52e2ce235c75fa5fa8bda71b92a4cd31ebf3994dd6d2f51bd9c0bbb2c","name":"Køya","registered_at":"2026-06-21T18:30:53Z","symbol":"NIM1998514","token_address":"0xdfc9ab9bbc1eed6365dd79f6aed66e0815fe0571","type":"artist","uuid":"fe8bb6d2-b451-439b-95f7-84898547e1a1"}
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 0x9be8b1f52e2ce235c75fa5fa8bda71b92a4cd31ebf3994dd6d2f51bd9c0bbb2c. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe8bb6d2-b451-439b-95f7-84898547e1a1.json and https://artists.proofprofile.net/proofs/artist/fe8bb6d2-b451-439b-95f7-84898547e1a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x9be8b1f52e2ce235c75fa5fa8bda71b92a4cd31ebf3994dd6d2f51bd9c0bbb2c","name":"Køya","registered_at":"2026-06-21T18:30:53Z","symbol":"NIM1998514","token_address":"0xdfc9ab9bbc1eed6365dd79f6aed66e0815fe0571","type":"artist","uuid":"fe8bb6d2-b451-439b-95f7-84898547e1a1"}
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  type: MusicAlbum
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