Alexey Markov
type: MusicGroup
genre: opera
popularity: 3
followers: 30
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c3f8bcca0537c23b595222291c707efbfa6cc995c03d0993743141ed344c0f8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5acf3dca-37b3-4364-85f6-341eb5d90254.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5acf3dca-37b3-4364-85f6-341eb5d90254.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5acf3dca-37b3-4364-85f6-341eb5d90254
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0x4c3f8bcca0537c23b595222291c707efbfa6cc995c03d0993743141ed344c0f8","name":"Alexey Markov","registered_at":"2026-06-16T21:18:36Z","symbol":"NIM1178574","token_address":"0x2ea609b0e22f5b8bb31036db04381846cee652a6","type":"artist","uuid":"5acf3dca-37b3-4364-85f6-341eb5d90254"}
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3f8bcca0537c23b595222291c707efbfa6cc995c03d0993743141ed344c0f8. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5acf3dca-37b3-4364-85f6-341eb5d90254.json and https://artists.proofprofile.net/proofs/artist/5acf3dca-37b3-4364-85f6-341eb5d90254.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x4c3f8bcca0537c23b595222291c707efbfa6cc995c03d0993743141ed344c0f8","name":"Alexey Markov","registered_at":"2026-06-16T21:18:36Z","symbol":"NIM1178574","token_address":"0x2ea609b0e22f5b8bb31036db04381846cee652a6","type":"artist","uuid":"5acf3dca-37b3-4364-85f6-341eb5d90254"}
album: Deus Ex Machina
  type: MusicAlbum
  date published: 2019-10-31
track: Iolanta Op. 69 / 6. Scene And Aria Of Robert: "Ne toropis', zdes' tak temno" "Kto možet sravnit'sya" - Live
  type: MusicRecording
  duration: PT5M15S
  duration ms: 315213
  explicit: false
  by artist: Pyotr Ilyich Tchaikovsky
  by artist: Sergey Skorokhodov
  by artist: Alexey Markov
  by artist: Slovenian Philharmonic Orchestra
  by artist: Emmanuel Villaume
  in album: Tchaikovsky: Iolanta (Live)
    type: MusicAlbum
    date published: 2015-01-01
  isrc code: DEN961231211
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    type: PropertyValue
    value: 2026-07-31T08:32:41+00:00
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960370
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960370
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961231211
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T08:38:45Z
  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 0x77c5f6c197e96534331e3cdc7edd0fc664a28233b4b700514a6cd865fb0bad67. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/DEN961231211 — a six-check JSON result.
    date published: 2026-07-31T08:38:45Z
  audio: Iolanta Op. 69 / 6. Scene And Aria Of Robert: "Ne toropis', zdes' tak temno" "Kto možet sravnit'sya" - Live
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 103.02
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
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      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.349
    additional property: Energy
      type: PropertyValue
      value: 0.255
    additional property: Speechiness
      type: PropertyValue
      value: 0.055
    additional property: Acousticness
      type: PropertyValue
      value: 0.98
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.148
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.386
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.62
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Iolanta Op. 69 / 7. Scene And Duet Of Iolanta And Vaudémont: "Odnako gde že mï?" - Live
  type: MusicRecording
  duration: PT6M35S
  duration ms: 395226
  explicit: false
  by artist: Pyotr Ilyich Tchaikovsky
  by artist: Anna Netrebko
  by artist: Sergey Skorokhodov
  by artist: Alexey Markov
  by artist: Slovenian Philharmonic Orchestra
  by artist: Emmanuel Villaume
  in album: Tchaikovsky: Iolanta (Live)
    type: MusicAlbum
    date published: 2015-01-01
  isrc code: DEN961231213
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T01:34:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x82d5fa78bf810ebcb8fe9be847ac962806aa59d49c3d16555f717531fe829695
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960334
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960334
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961231213
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T02:19:15Z
  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 0x82d5fa78bf810ebcb8fe9be847ac962806aa59d49c3d16555f717531fe829695. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEN961231213 — a six-check JSON result.
    date published: 2026-07-31T02:19:15Z
  audio: Iolanta Op. 69 / 7. Scene And Duet Of Iolanta And Vaudémont: "Odnako gde že mï?" - Live
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 96.853
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.3
    additional property: Energy
      type: PropertyValue
      value: 0.145
    additional property: Speechiness
      type: PropertyValue
      value: 0.072
    additional property: Acousticness
      type: PropertyValue
      value: 0.985
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name
track: Iolanta Op. 69 / 9. Finale: "Gotfrid, ya vïručat' tebya yavilsya" - Live

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.461

Valence (Positivity)
type: PropertyValue
value: 0.144

Loudness (dB)
type: PropertyValue
value: -21.562

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

Iolanta Op. 69 / 9. Finale: "Gotfrid, ya vïručat' tebya yavilsya" - Live
type: MusicRecording
duration: PT4M50S
duration ms: 290386
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Theresa Plut
by artist: Nuška Rojko
by artist: Monika Bohinec
by artist: Sergey Skorokhodov
by artist: JunHo You
by artist: Alexey Markov
by artist: Lucas Meachem
by artist: Vitalij Kowaljow
by artist: Luka Debevec Mayer
by artist: Slovenian Philharmonic Orchestra
by artist: Emmanuel Villaume
by artist: Slovenian Chamber Choir
in album: Tchaikovsky: Iolanta (Live)
  type: MusicAlbum
  date published: 2015-01-01
isrc code: DEN961231219
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T20:56:46+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x69b49f2cb829d6c5716acf9ada09d529428053a8b38b9dc6b8a011ca279b9623
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960317
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961231219
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T21:35:24Z
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 0x69b49f2cb829d6c5716acf9ada09d529428053a8b38b9dc6b8a011ca279b9623. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DEN961231219 — a six-check JSON result.
  date published: 2026-07-30T21:35:24Z
audio: Iolanta Op. 69 / 9. Finale: "Gotfrid, ya vïručat' tebya yavilsya" - Live
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.67
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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    value: Major