Leon Tomic
type: MusicGroup
genre: classical piano
popularity: 18
followers: 109
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeddd200a2e30bf71969fd64b2f4523be8eb4a8f1e55d1974eb62c7864725c0f5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953630
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953630
additional property: OTSProofURL
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30a0e17c-03f3-4af5-b950-91c123a69769.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/30a0e17c-03f3-4af5-b950-91c123a69769
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddd200a2e30bf71969fd64b2f4523be8eb4a8f1e55d1974eb62c7864725c0f5. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30a0e17c-03f3-4af5-b950-91c123a69769.json and https://artists.proofprofile.net/proofs/artist/30a0e17c-03f3-4af5-b950-91c123a69769.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T12:06:27Z
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album: Yes It Is
  type: MusicAlbum
  date published: 2019-05-28
album: Leon Tomic spielt aus den Alben der Wiener Barpianisten
  type: MusicAlbum
  date published: 2019-07-30
album: Homecoming
  type: MusicAlbum
  date published: 2019-11-22
album: Moonchild
  type: MusicAlbum
  date published: 2021-02-14
album: Take My Pride
  type: MusicAlbum
  date published: 2021-03-27
album: 333
  type: MusicAlbum
  date published: 2021-04-30
album: Hymn To The World
  type: MusicAlbum
  date published: 2021-05-21
album: 11:11
  type: MusicAlbum
  date published: 2021-07-09
album: Tonitrua
  type: MusicAlbum
  date published: 2021-09-01
album: 888
  type: MusicAlbum
  date published: 2021-10-08
album: Via
  type: MusicAlbum
  date published: 2021-11-05
album: Amicus
  type: MusicAlbum
  date published: 2021-11-12
album: Goodbye Mr. Chips
  type: MusicAlbum
  date published: 2021-12-15
album: Cadere
  type: MusicAlbum
  date published: 2021-12-24
album: l'hiver
  type: MusicAlbum
  date published: 2021-12-25
album: Manor Farm
  type: MusicAlbum
  date published: 2022-01-15
album: Verona
  type: MusicAlbum
  date published: 2022-02-25
album: Littlehampton
  type: MusicAlbum
  date published: 2022-04-01
album: Kairos
  type: MusicAlbum
  date published: 2022-05-05
album: Le frère disparu
  type: MusicAlbum
  date published: 2022-12-31
album: Hero's Lullaby
  type: MusicAlbum
  date published: 2023-01-08
album: Fernweh
  type: MusicAlbum
  date published: 2023-02-06
album: Metropolitan
  type: MusicAlbum
  date published: 2023-03-15
album: Aurum
  type: MusicAlbum
  date published: 2023-04-14
album: Lewis
  type: MusicAlbum
  date published: 2023-05-15
album: Florilia
  type: MusicAlbum
  date published: 2023-06-08
album: Kite
  type: MusicAlbum
  date published: 2023-08-08
album: Prelude
  type: MusicAlbum
  date published: 2023-09-08
album: Hoffnung
  type: MusicAlbum
  date published: 2023-10-08
album: A New Day
  type: MusicAlbum
  date published: 2023-11-17
album: Epilog
  type: MusicAlbum
  date published: 2023-12-24
album: Afterglow
  type: MusicAlbum
  date published: 2024-03-02
album: Fortuna
  type: MusicAlbum
  date published: 2024-06-21
album: Avenir
  type: MusicAlbum
  date published: 2024-11-28
  track: Avenir
    type: MusicRecording
    duration: PT2M11S
    duration ms: 131714
    explicit: false
    by artist: Leon Tomic
    in album: Avenir
      type: MusicAlbum
      date published: 2024-11-28
    genre: classical piano
    isrc code: QZZ772425595
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
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    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc7be97c9fafd979a46423040bf9d2b814d2db7b8e1f19bd4ef600e8f3434bf2f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956841
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ772425595
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T22:14:35Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7be97c9fafd979a46423040bf9d2b814d2db7b8e1f19bd4ef600e8f3434bf2f. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ772425595.
      date published: 2026-07-05T22:14:35Z
    audio: Avenir
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.433
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.366
      additional property: Energy
        type: PropertyValue
        value: 0.032
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Liquid Time
album: Low Tide
album: Snooze
album: Salon Bleu

Speechiness
type: PropertyValue
value: 0.042

Acousticness
type: PropertyValue
value: 0.993

Instrumentalness
type: PropertyValue
value: 0.885

Liveness
type: PropertyValue
value: 0.104

Valence (Positivity)
type: PropertyValue
value: 0.211

Loudness (dB)
type: PropertyValue
value: -28.658

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Minor

Liquid Time
type: MusicAlbum
date published: 2025-03-28
track: Liquid Time
  type: MusicRecording
  duration: PT2M17S
  duration ms: 137064
  explicit: false
  by artist: Leon Tomic
  in album: Liquid Time
    type: MusicAlbum
    date published: 2025-03-28
  genre: classical piano
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T10:55:09+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0xe00e57f1d70c8e803bc9aa17f20bebcc0aebe07fed4d6b6bc9e9a262c09325ec
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 956713
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956713
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR592402296
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T23:03:25Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00e57f1d70c8e803bc9aa17f20bebcc0aebe07fed4d6b6bc9e9a262c09325ec. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR592402296.
    date published: 2026-07-04T23:03:25Z
  audio: Liquid Time
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 65.688
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.29
    additional property: Energy
      type: PropertyValue
      value: 0.025
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.993
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.881
    additional property: Liveness
      type: PropertyValue
      value: 0.106
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.066
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.412
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Low Tide
type: MusicAlbum
date published: 2025-05-30

Snooze
type: MusicAlbum
date published: 2025-06-20

Salon Bleu
type: MusicAlbum
date published: 2025-09-05
track: Salon Bleu
  type: MusicRecording
  duration: PT3M3S
  duration ms: 183600
  explicit: false
  by artist: Leon Tomic
  in album: Salon Bleu
    type: MusicAlbum
    date published: 2025-09-05
  genre: classical piano
  isrc code: NLAM42500124
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T21:09:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x74aa555040da4c1272066109bb7287e30777706e158db8a39d931ba0c0fc1e14
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958690
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958690
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLAM42500124
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T07:14:39Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74aa555040da4c1272066109bb7287e30777706e158db8a39d931ba0c0fc1e14. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLAM42500124.
    date published: 2026-07-19T07:14:39Z
  audio: Salon Bleu
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 68.612
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.333
    additional property: Energy
      type: PropertyValue
      value: 0.012
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.983
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.931
    additional property: Liveness
      type: PropertyValue
      value: 0.118
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.148
    additional property: Loudness (dB)
      type: PropertyValue
      value: -28.939
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor