hei kalas
type: MusicGroup
popularity: 2
followers: 179
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x90c570c46a0d9a82b5697428720bf4eb89dfa4747f21ee65aa42ec2873ff8586
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/76a51d7d-af12-46e6-b733-34caabfc8e1b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/76a51d7d-af12-46e6-b733-34caabfc8e1b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/76a51d7d-af12-46e6-b733-34caabfc8e1b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x90c570c46a0d9a82b5697428720bf4eb89dfa4747f21ee65aa42ec2873ff8586","name":"hei kalas","registered_at":"2026-06-17T06:56:02Z","symbol":"NIM1316346","token_address":"0xd3e107c21b3400384a7fb50d1b97159b9b978681","type":"artist","uuid":"76a51d7d-af12-46e6-b733-34caabfc8e1b"}
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 0x90c570c46a0d9a82b5697428720bf4eb89dfa4747f21ee65aa42ec2873ff8586. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76a51d7d-af12-46e6-b733-34caabfc8e1b.json and https://artists.proofprofile.net/proofs/artist/76a51d7d-af12-46e6-b733-34caabfc8e1b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T15:44:10Z
  text: {"copyright_id":"0x90c570c46a0d9a82b5697428720bf4eb89dfa4747f21ee65aa42ec2873ff8586","name":"hei kalas","registered_at":"2026-06-17T06:56:02Z","symbol":"NIM1316346","token_address":"0xd3e107c21b3400384a7fb50d1b97159b9b978681","type":"artist","uuid":"76a51d7d-af12-46e6-b733-34caabfc8e1b"}
album: Hadet bra, Neil Armstrong
  type: MusicAlbum
  date published: 2019-07-19
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  type: MusicAlbum
  date published: 2019-11-15
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  type: MusicAlbum
  date published: 2019-11-15
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  type: MusicAlbum
  date published: 2020-03-20
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  type: MusicAlbum
  date published: 2020-09-11
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  type: MusicAlbum
  date published: 2020-09-11
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-09-08