Milcho Leviev
type: MusicGroup
genre: big band
genre: cool jazz
description: Milcho Leviev ( ; December 19, 1937 – October 12, 2019) was a Bulgarian composer, arranger, and jazz pianist. Leviev was born in Plovdiv, Bulgaria, into a Bulgarian Jewish family; his father was Izak
popularity: 13
followers: 1024
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album: Милчо Левиев и Теодосий Спасов: От концерт
  type: MusicAlbum
  date published: 1990-01-04
album: Milcho Leviev and Katoumi Quartet
  type: MusicAlbum
  date published: 1992-09-12
album: Gourbet Mohabet (Live)
  type: MusicAlbum
  date published: 1998
album: Piano Lessons
  type: MusicAlbum
  date published: 2007-09-04
album: Music For Big Bands
  type: MusicAlbum
  date published: 2007-09-11
album: Winter Tale
  type: MusicAlbum
  date published: 2008-06-01
album: Jazz At The Castle (Jazz na Hradě) - Milcho Leviev & Friends
  type: MusicAlbum
  date published: 2009-10-10
album: Milcho
  type: MusicAlbum
  date published: 2010-01-06
album: Blue Levis (Digitally Remastered)
  type: MusicAlbum
  date published: 2010-11-02
album: Piano Lesson (Digitally Remastered)
  type: MusicAlbum
  date published: 2010-11-02
album: Music For Big Band And Symphony Orchestra (Remastered)
  type: MusicAlbum
  date published: 2011-12-06
album: Plays The Music Of Irving Berlin (Remastered)
  type: MusicAlbum
  date published: 2011-12-06
album: Living for the City
  type: MusicAlbum
  date published: 2013-03-07
album: Maiden Voyage
  type: MusicAlbum
  date published: 2013-03-11
album: A Journey to Two Worlds
  type: MusicAlbum
  date published: 2015-01-21
album: Milcho Leviev Chamber music
  type: MusicAlbum
  date published: 2015-11-03
album: Piano Lessons
  type: MusicAlbum
  date published: 2017-04-11
album: Антивалс (Anti Waltz)
  type: MusicAlbum
  date published: 2021
album: Антивалс (Anti Waltz)
  type: MusicAlbum
  date published: 2021
album: Conversations from the Past
  type: MusicAlbum
  date published: 2022-06-02
track: Air on a Blue String
track: Blossoming
track: Water Jewels
track: Forest
track: Two Autumns
track: Dew
track: Children
track: Cherry Petals
track: Summer Rain
track: Mirror-Pond of Stars
track: Parting

Air on a Blue String
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by artist: Milcho Leviev
in album: Coffeehouse Piano Jazz, Vol. 1
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  date published: 2021-02-05
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audio: Air on a Blue String
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Blossoming
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by artist: Don Ellis
by artist: Milcho Leviev
by artist: David Cohen
by artist: John Guerin
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  date published: 2014-01-31
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  date published: 2026-07-02T03:55:08Z
audio: Blossoming
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Water Jewels
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by artist: John Guerin
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  date published: 2026-07-02T11:38:34Z
audio: Water Jewels
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Forest
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  date published: 2026-07-06T07:53:57Z
audio: Forest
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Two Autumns
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Dew
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isrc code: DEUM70802666
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T18:55:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x84bd9242bc14fbeda623d5d5cfa277a658cf761f85595e0f315680d92b399857
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM70802666
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bd9242bc14fbeda623d5d5cfa277a658cf761f85595e0f315680d92b399857. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEUM70802666.
  date published: 2026-06-13T17:25:41Z
audio: Dew
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.225
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.182
  additional property: Energy
    type: PropertyValue
    value: 0.221
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.552
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.326
  additional property: Liveness
    type: PropertyValue
    value: 0.114
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.077
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.881
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Children
type: MusicRecording
duration: PT3M18S
duration ms: 198720
explicit: false
by artist: Don Ellis
by artist: Milcho Leviev
by artist: David Cohen
by artist: John Guerin
in album: Haiku
  type: MusicAlbum
  date published: 2014-01-31
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8df0d35a58aa13835a155655b8eb2a75d4afd3b15ee326e0fd305ba304b6ca0. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DEA117400010.
  date published: 2026-07-29T22:48:59Z
audio: Children
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 163.627
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.483
  additional property: Energy
    type: PropertyValue
    value: 0.32
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.862
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.65
  additional property: Liveness
    type: PropertyValue
    value: 0.407
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.323
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.584
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: DEA117400010
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960160
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T22:48:59+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA117400010
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960160
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960160
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T22:48:59+00:00
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

Cherry Petals
type: MusicRecording
duration: PT2M49S
duration ms: 169986
explicit: false
by artist: Don Ellis
by artist: Milcho Leviev
by artist: David Cohen
by artist: John Guerin
in album: Haiku
  type: MusicAlbum
  date published: 2014-01-31
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4a0f5d4059fd3ee30cc4ff698bd3b820cb221168f48a928c301159c23e8dd3. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEUM70802660.
  date published: 2026-07-30T17:23:26Z
audio: Cherry Petals
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.257
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.273
  additional property: Energy
    type: PropertyValue
    value: 0.446
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.916
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.764
  additional property: Liveness
    type: PropertyValue
    value: 0.5
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.399
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.121
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: DEUM70802660
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960284
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T17:23:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM70802660
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960284
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960284
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T17:23:26+00:00
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

Summer Rain
type: MusicRecording
duration: PT2M24S
duration ms: 144920
explicit: false
by artist: Don Ellis
by artist: Milcho Leviev
by artist: David Cohen
by artist: John Guerin
in album: Haiku
  type: MusicAlbum
  date published: 2014-01-31
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9d287ce88b577ac41b56eb9330b5aa9f66142c21de0888dfbf379118587553. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEUM70802662.
  date published: 2026-07-30T14:36:16Z
audio: Summer Rain
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.219
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.665
  additional property: Energy
    type: PropertyValue
    value: 0.56
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.739
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.678
  additional property: Liveness
    type: PropertyValue
    value: 0.465
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.779
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.747
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: DEUM70802662
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960264
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T14:36:16+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM70802662
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960264
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960264
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16+00:00
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

Mirror-Pond of Stars
type: MusicRecording
duration: PT3M24S
duration ms: 204413
explicit: false
by artist: Don Ellis
by artist: Milcho Leviev
by artist: David Cohen
by artist: John Guerin
in album: Haiku
  type: MusicAlbum
  date published: 2014-01-31
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7990bd33e320038de034b637aeccb75735376f6eaad60e34ea45ce33441f8209. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEUM70802664.
  date published: 2026-07-30T17:23:26Z
audio: Mirror-Pond of Stars
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 148.576
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.303
  additional property: Energy
    type: PropertyValue
    value: 0.239
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.568
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.483
  additional property: Liveness
    type: PropertyValue
    value: 0.055
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.255
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.581
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: DEUM70802664
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960284
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T17:23:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM70802664
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960284
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960284
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T17:23:26+00:00
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

Parting
type: MusicRecording
duration: PT6M13S
duration ms: 373098
explicit: false
by artist: Don Ellis
by artist: Milcho Leviev
by artist: David Cohen
by artist: John Guerin
in album: Haiku
  type: MusicAlbum
  date published: 2014-01-31
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7500b9b96b24ae1ef59b6385a7524da78e83b218141e5c94379492036d48277. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DEUM70802665.
  date published: 2026-07-30T03:35:13Z
audio: Parting
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.061
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.511
  additional property: Energy
    type: PropertyValue
    value: 0.31
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.274
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.558
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.264
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.888
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: DEUM70802665
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960203
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T03:35:13+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM70802665
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960203
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960203
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T03:35:13+00:00
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