Jan Váňa
type: MusicGroup
genre: acoustic folk
popularity: 12
followers: 826
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b596b496c80a2c43c98cbcce9c98daeccf8f68ef29dd602989589a78cb6bbe0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953687
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953687
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/68cf5631-f826-4c59-bc0d-114336a9ea85.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/68cf5631-f826-4c59-bc0d-114336a9ea85.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/68cf5631-f826-4c59-bc0d-114336a9ea85
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T20:19:15Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6b596b496c80a2c43c98cbcce9c98daeccf8f68ef29dd602989589a78cb6bbe0","name":"Jan Váňa","registered_at":"2026-06-14T15:24:08Z","symbol":"NIM0494953","token_address":"0x511c480563b4e35a1a192627054afee6e4b41f3a","type":"artist","uuid":"68cf5631-f826-4c59-bc0d-114336a9ea85"}
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 0x6b596b496c80a2c43c98cbcce9c98daeccf8f68ef29dd602989589a78cb6bbe0. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68cf5631-f826-4c59-bc0d-114336a9ea85.json and https://artists.proofprofile.net/proofs/artist/68cf5631-f826-4c59-bc0d-114336a9ea85.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T20:19:15Z
  text: {"copyright_id":"0x6b596b496c80a2c43c98cbcce9c98daeccf8f68ef29dd602989589a78cb6bbe0","name":"Jan Váňa","registered_at":"2026-06-14T15:24:08Z","symbol":"NIM0494953","token_address":"0x511c480563b4e35a1a192627054afee6e4b41f3a","type":"artist","uuid":"68cf5631-f826-4c59-bc0d-114336a9ea85"}
album: První demáče
  type: MusicAlbum
  date published: 2020-11-02
album: Místa
  type: MusicAlbum
  date published: 2020-11-18
album: Mimové na párty
  type: MusicAlbum
  date published: 2021-01-04
album: Dopis
  type: MusicAlbum
  date published: 2021-01-26
album: Žlutý stropy
  type: MusicAlbum
  date published: 2021-07-06
album: Koncert - Živě z Tintili Vantili (live z Tintili Vantili)
  type: MusicAlbum
  date published: 2021-12-31
album: Wombat session - Živě z Tintili Vantili (live z Tintili Vantili)
  type: MusicAlbum
  date published: 2021-12-31
album: tajem
  type: MusicAlbum
  date published: 2022-05-20
  track: tajem
    type: MusicRecording
    duration: PT2M41S
    duration ms: 161500
    explicit: false
    by artist: Jan Váňa
    in album: tajem
      type: MusicAlbum
      date published: 2022-05-20
    genre: acoustic folk
    isrc code: QZHN72245586
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T00:44:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xea9c250e018caf693d7ab309fd08c3c78cb94f257e99ae0b9972fce4ef4cad0b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958633
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958633
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72245586
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T00:54:50Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xea9c250e018caf693d7ab309fd08c3c78cb94f257e99ae0b9972fce4ef4cad0b. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72245586 — a six-check JSON result.
      date published: 2026-07-19T00:54:50Z
    audio: tajem
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 79.953
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.53
      additional property: Energy
        type: PropertyValue
        value: 0.158
      additional property: Speechiness
        type: PropertyValue
        value: 0.05
      additional property: Acousticness
        type: PropertyValue
        value: 0.764
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.231
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.374
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.289
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Mrholí
  type: MusicAlbum
  date published: 2024-02-16
album: A na Jordán dopadla tma
  type: MusicAlbum
  date published: 2024-04-12
album: Kmeny
  type: MusicAlbum
  date published: 2024-11-15
album: z mýho pokoje.
  type: MusicAlbum
  date published: 2024-11-29