Josef Voltr
type: MusicGroup
popularity: 4
followers: 164
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ce23417ca64bbb133d07f1577ba55a8a5405a0cef9911ae65702ecc1ed9109. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08c56c99-5847-455a-a01c-5cf5344d9a03.json and https://artists.proofprofile.net/proofs/artist/08c56c99-5847-455a-a01c-5cf5344d9a03.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T02:39:16Z
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2024-04-30
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album: PLÁČ
album: Tichá noc
album: NEPŘIZNÁŠ
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album: ONE MOMENT IN THE TIME
album: MŮJ SEN

YOU RAISE ME UP
type: MusicAlbum
date published: 2024-05-10

KAM SE SCHOULÍŠ
type: MusicAlbum
date published: 2024-06-03

DÍVKA Z OBRAZU
type: MusicAlbum
date published: 2024-07-21

ZŮSTANU SVŮJ
type: MusicAlbum
date published: 2024-08-01

HRÁTKY S LÁSKOU
type: MusicAlbum
date published: 2024-08-29

PLÁČ
type: MusicAlbum
date published: 2024-10-16

Tichá noc
type: MusicAlbum
date published: 2024-11-27

NEPŘIZNÁŠ
type: MusicAlbum
date published: 2024-12-27

VLTAVA
type: MusicAlbum
date published: 2024-12-27

ONE MOMENT IN THE TIME
type: MusicAlbum
date published: 2025-01-22

MŮJ SEN
type: MusicAlbum
date published: 2025-02-17

Love Me With All Your Heart
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date published: 2025-03-29

I'll Never Fall In Love Again
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date published: 2025-05-02

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date published: 2025-05-09

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type: MusicAlbum
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type: MusicAlbum
date published: 2025-07-25

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type: MusicAlbum
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type: MusicAlbum
date published: 2025-09-08