Apex Kato
type: MusicGroup
popularity: 5
followers: 182
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3040f67b8c13553a34e00aa7b2e7202349e6e78a1dc6ce96536a718790d85b4b
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/67a49714-e362-4ea5-b834-e3aa17f054ba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/67a49714-e362-4ea5-b834-e3aa17f054ba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/67a49714-e362-4ea5-b834-e3aa17f054ba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3040f67b8c13553a34e00aa7b2e7202349e6e78a1dc6ce96536a718790d85b4b","name":"Apex Kato","registered_at":"2026-06-17T01:50:20Z","symbol":"NIM1243387","token_address":"0x6de6032c1b1bddac7a3bb230c5f1e1fd0eaaeeec","type":"artist","uuid":"67a49714-e362-4ea5-b834-e3aa17f054ba"}
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 0x3040f67b8c13553a34e00aa7b2e7202349e6e78a1dc6ce96536a718790d85b4b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/67a49714-e362-4ea5-b834-e3aa17f054ba.json and https://artists.proofprofile.net/proofs/artist/67a49714-e362-4ea5-b834-e3aa17f054ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x3040f67b8c13553a34e00aa7b2e7202349e6e78a1dc6ce96536a718790d85b4b","name":"Apex Kato","registered_at":"2026-06-17T01:50:20Z","symbol":"NIM1243387","token_address":"0x6de6032c1b1bddac7a3bb230c5f1e1fd0eaaeeec","type":"artist","uuid":"67a49714-e362-4ea5-b834-e3aa17f054ba"}
album: Xxtra
  type: MusicAlbum
  date published: 2019-06-16
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  type: MusicAlbum
  date published: 2019-09-23
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  type: MusicAlbum
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  type: MusicAlbum
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  date published: 2022-01-01
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  date published: 2022-03-25
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-07-15
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  type: MusicAlbum
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