Killerów 2-óch
type: MusicGroup
popularity: 5
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee5d1ab6f252cfd27d104c9111ad68cf5b655925212ec8f3a641eee81736cc99
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca0eb630-7c48-46ca-9f1d-d7b3fbfc2022.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca0eb630-7c48-46ca-9f1d-d7b3fbfc2022.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ca0eb630-7c48-46ca-9f1d-d7b3fbfc2022
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xee5d1ab6f252cfd27d104c9111ad68cf5b655925212ec8f3a641eee81736cc99","name":"Killerów 2-óch","registered_at":"2026-06-20T22:49:16Z","symbol":"NIM1735552","token_address":"0xe3b2726f46a7026ae97ea65c326536dbb3f244bf","type":"artist","uuid":"ca0eb630-7c48-46ca-9f1d-d7b3fbfc2022"}
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 0xee5d1ab6f252cfd27d104c9111ad68cf5b655925212ec8f3a641eee81736cc99. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca0eb630-7c48-46ca-9f1d-d7b3fbfc2022.json and https://artists.proofprofile.net/proofs/artist/ca0eb630-7c48-46ca-9f1d-d7b3fbfc2022.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xee5d1ab6f252cfd27d104c9111ad68cf5b655925212ec8f3a641eee81736cc99","name":"Killerów 2-óch","registered_at":"2026-06-20T22:49:16Z","symbol":"NIM1735552","token_address":"0xe3b2726f46a7026ae97ea65c326536dbb3f244bf","type":"artist","uuid":"ca0eb630-7c48-46ca-9f1d-d7b3fbfc2022"}
album: Terapia
  type: MusicAlbum
  date published: 2023-03-15
album: Killerów 2-óch cz.II
  type: MusicAlbum
  date published: 2023-03-15
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  type: MusicAlbum
  date published: 2023-03-15
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  date published: 2023-03-16
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  type: MusicAlbum
  date published: 2023-03-24
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-05-14
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  type: MusicAlbum
  date published: 2023-07-28
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  type: MusicAlbum
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album: MIXTURA3 (CD1)
  type: MusicAlbum
  date published: 2023-12-24
album: MIXTURA3 (CD2 Bonus)
  type: MusicAlbum
  date published: 2023-12-24