Jan Nedved ml.
type: MusicGroup
popularity: 4
followers: 125
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2e8bd3171b4ab9f25beb42b65346f9b80f264b58f2d7b50995b3ebbbafa7a996
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/bc3f2ab3-be64-4910-9a60-bceeb83f2602.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc3f2ab3-be64-4910-9a60-bceeb83f2602.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bc3f2ab3-be64-4910-9a60-bceeb83f2602
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2e8bd3171b4ab9f25beb42b65346f9b80f264b58f2d7b50995b3ebbbafa7a996","name":"Jan Nedved ml.","registered_at":"2026-06-20T17:45:38Z","symbol":"NIM1670356","token_address":"0x7e3885ae0ff494de7ea7cd50aa57a99eaddc848f","type":"artist","uuid":"bc3f2ab3-be64-4910-9a60-bceeb83f2602"}
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 0x2e8bd3171b4ab9f25beb42b65346f9b80f264b58f2d7b50995b3ebbbafa7a996. 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/bc3f2ab3-be64-4910-9a60-bceeb83f2602.json and https://artists.proofprofile.net/proofs/artist/bc3f2ab3-be64-4910-9a60-bceeb83f2602.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":"0x2e8bd3171b4ab9f25beb42b65346f9b80f264b58f2d7b50995b3ebbbafa7a996","name":"Jan Nedved ml.","registered_at":"2026-06-20T17:45:38Z","symbol":"NIM1670356","token_address":"0x7e3885ae0ff494de7ea7cd50aa57a99eaddc848f","type":"artist","uuid":"bc3f2ab3-be64-4910-9a60-bceeb83f2602"}
album: Kapky deště
  type: MusicAlbum
  date published: 2025-08-01
  track: Kapky deště
    type: MusicRecording
    duration: PT3M45S
    duration ms: 225332
    explicit: false
    by artist: Jan Nedved ml.
    in album: Kapky deště
      type: MusicAlbum
      date published: 2025-08-01
    isrc code: CZUM72500903
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T06:24:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa4550babf04d6c8a5b2df68eb0ef617db5e5ee43d675416f9ff9a4b74188825d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72500903
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0xa4550babf04d6c8a5b2df68eb0ef617db5e5ee43d675416f9ff9a4b74188825d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CZUM72500903 — a six-check JSON result.
      date published: 2026-07-05T10:01:46Z
    audio: Kapky deště
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 164.045
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.654
      additional property: Energy
        type: PropertyValue
        value: 0.457
      additional property: Speechiness
        type: PropertyValue
        value: 0.046
      additional property: Acousticness
        type: PropertyValue
        value: 0.851
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.51
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.91
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: To nejlepší
  type: MusicAlbum
  date published: 2025-09-05
  track: Malůvky
    type: MusicRecording
    duration: PT2M36S
    duration ms: 156945
    explicit: false
    by artist: Jan Nedved ml.
    in album: To nejlepší
      type: MusicAlbum
      date published: 2025-09-05
    isrc code: CZUM72500814
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T17:50:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x88980353cb6b5fdb693d9b1473523d7f244e3fda2b3249ea0ed42299943c0515
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959163
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959163
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72500814
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T18:47:29Z
    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 0x88980353cb6b5fdb693d9b1473523d7f244e3fda2b3249ea0ed42299943c0515. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/CZUM72500814 — a six-check JSON result.
      date published: 2026-07-22T18:47:29Z
    audio: Malůvky
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 111.085
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.712
      additional property: Energy
        type: PropertyValue
        value: 0.255
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.848
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.118
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.445
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Panenka v trávě

Loudness (dB)
type: PropertyValue
value: -13.327

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Minor

Panenka v trávě
type: MusicAlbum
date published: 2025-11-07