Kelven
type: MusicGroup
popularity: 2
followers: 40
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x99ba712f9b92be5bc75dbec0f38c793e489d1949c0a3b79c303149051431a345
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954055
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954055
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4399f08f-88e2-4e3d-96d0-d66c7affb5ae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4399f08f-88e2-4e3d-96d0-d66c7affb5ae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4399f08f-88e2-4e3d-96d0-d66c7affb5ae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:51:24Z
additional property: OTSCanonicalRecord
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 0x99ba712f9b92be5bc75dbec0f38c793e489d1949c0a3b79c303149051431a345. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4399f08f-88e2-4e3d-96d0-d66c7affb5ae.json and https://artists.proofprofile.net/proofs/artist/4399f08f-88e2-4e3d-96d0-d66c7affb5ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T05:51:24Z
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  type: MusicAlbum
  date published: 2021-09-02
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  type: MusicAlbum
  date published: 2021-09-22
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  type: MusicAlbum
  date published: 2021-09-22
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  type: MusicAlbum
  date published: 2021-10-10
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  type: MusicAlbum
  date published: 2022-03-04
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  type: MusicAlbum
  date published: 2023-01-13
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  type: MusicAlbum
  date published: 2023-02-20
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  type: MusicAlbum
  date published: 2023-03-31
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  type: MusicAlbum
  date published: 2023-05-10
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  type: MusicAlbum
  date published: 2024-05-12
album: NORMAL
  type: MusicAlbum
  date published: 2025-02-23
album: DIFERENTI
  type: MusicAlbum
  date published: 2025-06-20