Amadinda Percussion Group
type: MusicGroup
genre: avant-garde
genre: minimalism
description: Amadinda Percussion Group is a percussion ensemble that was formed in Budapest in 1984 by four musicians, who had just graduated from the Ferenc Liszt Academy of Music. Since founding the ensemble, t
popularity: 9
followers: 724
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd584594ef97587ba7fff8aa28287194e3a5c0b4175179fe75b2dee23e1a4bf03
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/74600d14-2034-4be6-b0ab-82fae18faf61.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/74600d14-2034-4be6-b0ab-82fae18faf61.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/74600d14-2034-4be6-b0ab-82fae18faf61
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd584594ef97587ba7fff8aa28287194e3a5c0b4175179fe75b2dee23e1a4bf03","name":"Amadinda Percussion Group","registered_at":"2026-06-17T06:35:05Z","symbol":"NIM1311352","token_address":"0x216b2cf5939325e2ec3f1683d10b158d407eb220","type":"artist","uuid":"74600d14-2034-4be6-b0ab-82fae18faf61"}
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 0xd584594ef97587ba7fff8aa28287194e3a5c0b4175179fe75b2dee23e1a4bf03. 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/74600d14-2034-4be6-b0ab-82fae18faf61.json and https://artists.proofprofile.net/proofs/artist/74600d14-2034-4be6-b0ab-82fae18faf61.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":"0xd584594ef97587ba7fff8aa28287194e3a5c0b4175179fe75b2dee23e1a4bf03","name":"Amadinda Percussion Group","registered_at":"2026-06-17T06:35:05Z","symbol":"NIM1311352","token_address":"0x216b2cf5939325e2ec3f1683d10b158d407eb220","type":"artist","uuid":"74600d14-2034-4be6-b0ab-82fae18faf61"}
album: Legacies 10
  type: MusicAlbum
  date published: 2022-06-10
  track: Mudra
    type: MusicRecording
    duration: PT13M4S
    duration ms: 784306
    explicit: false
    by artist: Bob Becker
    by artist: Amadinda Percussion Group
    by artist: László Tömösközi
    in album: Legacies 10
      type: MusicAlbum
      date published: 2022-06-10
    popularity: 1
    isrc code: HUA182240602
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T18:23:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6587c23b3c6cb6d2888f38e0f23fc5d814997eb8d97a9384648a0f1415bfe3e9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957120
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957120
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA182240602
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:22:41Z
    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 0x6587c23b3c6cb6d2888f38e0f23fc5d814997eb8d97a9384648a0f1415bfe3e9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA182240602 — a six-check JSON result.
      date published: 2026-07-08T03:22:41Z
    audio: Mudra
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.008
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.393
      additional property: Energy
        type: PropertyValue
        value: 0.563
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.872
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.773
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.039
      additional property: Loudness (dB)
        type: PropertyValue
        value: -17.334
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Khamush
  type: MusicAlbum
  date published: 2022-04-08
album: Legacies 9
  type: MusicAlbum
  date published: 2015-06-01
album: Cage: Works for Percussion, Vol. 2 (1941-1950)
  type: MusicAlbum
  date published: 2014-11-01
album: Reich: Music for Mallet Instruments, Voices and Organ / Music for Pieces of Wood / Sextet
  type: MusicAlbum
  date published: 2014-07-15
  track: Music for Mallet Instruments, Voices, and Organ
    type: MusicRecording
    duration: PT15M59S
    duration ms: 959173
    explicit: false
    by artist: Steve Reich
    by artist: Ágnes Dobszay
    by artist: Erzsébet Hajdu
    by artist: Zsuzsanna Lukin
    by artist: Aurél Holló
    by artist: Tibor Nemes
    by artist: Balázs Papp
    by artist: Benedek Tóth
    by artist: Béla Faragó
    by artist: Amadinda Percussion Group
    in album: Reich: Music for Mallet Instruments, Voices and Organ / Music for Pieces of Wood / Sextet
      type: MusicAlbum
      date published: 2014-07-15
    isrc code: HUA253135801
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-30T22:28:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x588e75ab5ac8242ecb935704eb241d3e585e6827ec335c9125fc0622cb47b6e4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960327
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960327
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253135801
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T00:26:26Z
    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 0x588e75ab5ac8242ecb935704eb241d3e585e6827ec335c9125fc0622cb47b6e4. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253135801 — a six-check JSON result.
      date published: 2026-07-31T00:26:26Z
    audio: Music for Mallet Instruments, Voices, and Organ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.735
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      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
  track: Music for Pieces of Wood
  track: Sextet
album: Marta: Story From A Doll's House / Reich: Piano Phase / Cage: Second Construction
album: Hollo / Vaczi: Before John
album: Cage: Works for Percussion, Vol. 6 (1975-1991)
album: Cage: Works for Percussion, Vol. 5 (1936-1991)
album: Cage: Works for Percussion, Vol. 4 (1940-1956)
album: Cage: Works for Percussion, Vol. 1 (1935-1941)
album: Cage: 4'33" / Varese: Ionisation / Chavez: Toccata
album: Amadinda Percussion Group: Legacies 5 - Live Recordings 1989-1999
album: Cage: Works for Percussion, Vol. 3 (1991)
album: The Ligeti Project
album: Ligeti : Project Vol.3 - Cello Concerto, Clocks & Clouds, Violin Concerto & Síppal, Dobbal, Nádihegedüvel
album: Stravinsky, Janáček, Bartók: Village Stories
album: The Apocalypse of Enoch
album: Stravinsky: Les Noces (1917 and 1923 Versions)
album: Reich: Music for 18 Musicians
album: Hungarian Jazz History, Vol. 13: Ragtime!
album: Marta: Glass Blower's Seventh Dream (The) / Tamad A Szel (The Wind Attacks) / Kapolcs Alarm
album: The Hanged
album: Cage: Works for Percussion, Vol. 2 - Legacies 3
album: Sary: Works for Percussion
album: Hungary Amadinda, Locomotiv Gt, Trio Stendhal: Zorr
album: Marta: Anatomy of A Scream / The Wind Arises / Story From A Doll's House
album: Sugar, M.: Mosaic / Musica Agile / Dissolves / Cloud Variations / Reminiscences / Chorea / Meetings
album: Lang: Violin Sonata / Cello Sonata / Canto / Viviofa
album: Gemesi: Church at Dawn / Portrait of Istvan Macsai / Pavane Pour Une Infante Defunte / Clods / Duo
album: Dubrovay: Hungarian Sounds

Time Signature
type: PropertyValue
value: 5

Danceability
type: PropertyValue
value: 0.415

Energy
type: PropertyValue
value: 0.166

Speechiness
type: PropertyValue
value: 0.036

Acousticness
type: PropertyValue
value: 0.995

Instrumentalness
type: PropertyValue
value: 0.648

Liveness
type: PropertyValue
value: 0.084

Valence (Positivity)
type: PropertyValue
value: 0.093

Loudness (dB)
type: PropertyValue
value: -22.571

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

Music for Pieces of Wood
type: MusicRecording
duration: PT10M34S
duration ms: 634653
explicit: false
by artist: Steve Reich
by artist: Barnabás Dukay
by artist: Amadinda Percussion Group
in album: Reich: Music for Mallet Instruments, Voices and Organ / Music for Pieces of Wood / Sextet
  type: MusicAlbum
  date published: 2014-07-15
isrc code: HUA253135802
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T13:01:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc701896aba75c7a3d0fe5907428999ce74e1cb0472d4c588db3133904d48f3c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960404
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960404
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253135802
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:06:57Z
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 0xdc701896aba75c7a3d0fe5907428999ce74e1cb0472d4c588db3133904d48f3c. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/HUA253135802 — a six-check JSON result.
  date published: 2026-07-31T13:06:57Z
audio: Music for Pieces of Wood
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.452
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.717
  additional property: Energy
    type: PropertyValue
    value: 0.266
  additional property: Speechiness
    type: PropertyValue
    value: 0.084
  additional property: Acousticness
    type: PropertyValue
    value: 0.668
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.976
  additional property: Liveness
    type: PropertyValue
    value: 0.157
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.154
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.503
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sextet
type: MusicRecording
duration: PT25M58S
duration ms: 1558173
explicit: false
by artist: Steve Reich
by artist: Károly Binder
by artist: György Oravecz
by artist: Amadinda Percussion Group
in album: Reich: Music for Mallet Instruments, Voices and Organ / Music for Pieces of Wood / Sextet
  type: MusicAlbum
  date published: 2014-07-15
isrc code: HUA253135803
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:32:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf0ce66f5bd614859493826e78ec4dc546fac2ecc0bc086a297849b7dd17eb0b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253135803
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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 0xaf0ce66f5bd614859493826e78ec4dc546fac2ecc0bc086a297849b7dd17eb0b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HUA253135803 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Sextet
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.958
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.329
  additional property: Energy
    type: PropertyValue
    value: 0.193
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.889
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.408
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Marta: Story From A Doll's House / Reich: Piano Phase / Cage: Second Construction
type: MusicAlbum
date published: 2014-07-15

Hollo / Vaczi: Before John
type: MusicAlbum
date published: 2014-07-15

Cage: Works for Percussion, Vol. 6 (1975-1991)
type: MusicAlbum
date published: 2014-07-15

Cage: Works for Percussion, Vol. 5 (1936-1991)
type: MusicAlbum
date published: 2014-07-15

Cage: Works for Percussion, Vol. 4 (1940-1956)
type: MusicAlbum
date published: 2014-07-15

Cage: Works for Percussion, Vol. 1 (1935-1941)
type: MusicAlbum
date published: 2014-07-15

Cage: 4'33" / Varese: Ionisation / Chavez: Toccata
type: MusicAlbum
date published: 2014-07-15
track: Ionisation
  type: MusicRecording
  duration: PT5M46S
  duration ms: 346533
  explicit: false
  by artist: Edgard Varèse
  by artist: Amadinda Percussion Group
  in album: Cage: 4'33" / Varese: Ionisation / Chavez: Toccata
    type: MusicAlbum
    date published: 2014-07-15
  popularity: 2
  genre: early-modern-classical
  genre: avant-garde
  genre: musique-concrete
  genre: acousmatic
  isrc code: HUA251299101
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T02:47:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x879d7bf83dd834d96b98bdc9f1d1e8e25eae822155f306fb0b872400776db2eb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA251299101
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0x879d7bf83dd834d96b98bdc9f1d1e8e25eae822155f306fb0b872400776db2eb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HUA251299101 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Ionisation
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 147.252
    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: 0.489
    additional property: Energy
      type: PropertyValue
      value: 0.333
    additional property: Speechiness
      type: PropertyValue
      value: 0.129
    additional property: Acousticness
      type: PropertyValue
      value: 0.244
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.706
    additional property: Liveness
      type: PropertyValue
      value: 0.097
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.065
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.189
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Amadinda Percussion Group: Legacies 5 - Live Recordings 1989-1999
type: MusicAlbum
date published: 2014-07-15

Cage: Works for Percussion, Vol. 3 (1991)
type: MusicAlbum
date published: 2014-07-15

The Ligeti Project
type: MusicAlbum
date published: 2008
track: Ligeti : Melodien
  type: MusicRecording
  duration: PT13M2S
  duration ms: 782426
  explicit: false
  by artist: György Ligeti
  by artist: Reinbert de Leeuw
  by artist: Schönberg Ensemble
  in album: The Ligeti Project
    type: MusicAlbum
    date published: 2008
  isrc code: DEA800102300
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T19:03:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1709827078c3ba14bd29c68ab3335fcec4971e4011c379ea1bf16c59d40637e1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960298
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960298
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800102300
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T19:26:00Z
  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 0x1709827078c3ba14bd29c68ab3335fcec4971e4011c379ea1bf16c59d40637e1. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/DEA800102300 — a six-check JSON result.
    date published: 2026-07-30T19:26:00Z
  audio: Ligeti : Melodien
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 106.677
    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: 0.082
    additional property: Energy
      type: PropertyValue
      value: 0.069
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.923
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.935
    additional property: Liveness
      type: PropertyValue
      value: 0.315
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.032
    additional property: Loudness (dB)
      type: PropertyValue
      value: -30.497
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Ligeti: Chamber Concerto: I. Corrente. Flieβend
  type: MusicRecording
  duration: PT5M47S
  duration ms: 347960
  explicit: false
  by artist: György Ligeti
  by artist: Reinbert de Leeuw
  by artist: Schönberg Ensemble
  in album: The Ligeti Project
    type: MusicAlbum
    date published: 2008
  isrc code: DEA800102401
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T13:22:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf4c7718171402257bdcb467c767f5c50bf750be94bce61f805ef8a957952c5b5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800102401
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0xf4c7718171402257bdcb467c767f5c50bf750be94bce61f805ef8a957952c5b5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEA800102401 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Ligeti: Chamber Concerto: I. Corrente. Flieβend
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 93.844
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.064
    additional property: Energy
      type: PropertyValue
      value: 0.012
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.875
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.687
    additional property: Liveness
      type: PropertyValue
      value: 0.06
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.034
    additional property: Loudness (dB)
      type: PropertyValue
      value: -36.47
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Ligeti: Chamber Concerto: III. Movimento preciso e meccanico
  type: MusicRecording
  duration: PT3M35S
  duration ms: 215240
  explicit: false
  by artist: György Ligeti
  by artist: Reinbert de Leeuw
  by artist: Schönberg Ensemble
  in album: The Ligeti Project
    type: MusicAlbum
    date published: 2008
  isrc code: DEA800102403
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T20:32:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x31009f887c77b7f71e0a4deb58881477a751dc22b41cea81f4050d7cfcf1067a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960468
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Ligeti: Chamber Concerto: III. Movimento preciso e meccanico
track: Ligeti: Piano Concerto: I. Vivace molto ritmico e preciso
track: Ligeti: Piano Concerto: II. Lento e deserto
track: Ligeti: Lontano
track: Ligeti: Atmosphères
track: Ligeti: Clocks and Clouds
track: Ligeti: Requiem: IV. Lacrimosa. Molto lento

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960468

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800102403

OTSTimestamp
type: PropertyValue
value: 2026-07-31T21:25:57Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31009f887c77b7f71e0a4deb58881477a751dc22b41cea81f4050d7cfcf1067a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEA800102403 — a six-check JSON result.
date published: 2026-07-31T21:25:57Z

Ligeti: Chamber Concerto: III. Movimento preciso e meccanico
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 153.576
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.404
additional property: Energy
  type: PropertyValue
  value: 0.214
additional property: Speechiness
  type: PropertyValue
  value: 0.061
additional property: Acousticness
  type: PropertyValue
  value: 0.843
additional property: Instrumentalness
  type: PropertyValue
  value: 0.7
additional property: Liveness
  type: PropertyValue
  value: 0.083
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.092
additional property: Loudness (dB)
  type: PropertyValue
  value: -26.403
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

Ligeti: Piano Concerto: I. Vivace molto ritmico e preciso
type: MusicRecording
duration: PT4M5S
duration ms: 245600
explicit: false
by artist: György Ligeti
by artist: Pierre-Laurent Aimard
by artist: Asko Ensemble
by artist: Reinbert de Leeuw
in album: The Ligeti Project
  type: MusicAlbum
  date published: 2008
isrc code: DEA800102501
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:06:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb604b5bb1e6b2db7a9ef111164074ae17208d66a430d37c1fdc750e34e933860
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800102501
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0xb604b5bb1e6b2db7a9ef111164074ae17208d66a430d37c1fdc750e34e933860. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800102501 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Ligeti: Piano Concerto: I. Vivace molto ritmico e preciso
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.38
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.469
  additional property: Energy
    type: PropertyValue
    value: 0.284
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.703
  additional property: Liveness
    type: PropertyValue
    value: 0.148
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.375
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.623
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Ligeti: Piano Concerto: II. Lento e deserto
type: MusicRecording
duration: PT6M44S
duration ms: 404173
explicit: false
by artist: György Ligeti
by artist: Pierre-Laurent Aimard
by artist: Asko Ensemble
by artist: Reinbert de Leeuw
in album: The Ligeti Project
  type: MusicAlbum
  date published: 2008
isrc code: DEA800102502
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:21:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8215b099ed74223db48210e53b6d96c3e6c9e15515baf03f4b33befc13fab0f7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800102502
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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 0x8215b099ed74223db48210e53b6d96c3e6c9e15515baf03f4b33befc13fab0f7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEA800102502 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Ligeti: Piano Concerto: II. Lento e deserto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.639
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.206
  additional property: Energy
    type: PropertyValue
    value: 0.038
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.622
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.109
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.028
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.675
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ligeti: Lontano
type: MusicRecording
duration: PT11M37S
duration ms: 697426
explicit: false
by artist: György Ligeti
by artist: Jonathan Nott
by artist: Berliner Philharmoniker
in album: The Ligeti Project
  type: MusicAlbum
  date published: 2008
isrc code: DEA800200224
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a42cf8c55fa6869a32eb9c1441df7e80e4b64948fcd12c90fa2f5a10b72d470
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960229
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960229
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800200224
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:30:10Z
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 0x4a42cf8c55fa6869a32eb9c1441df7e80e4b64948fcd12c90fa2f5a10b72d470. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/DEA800200224 — a six-check JSON result.
  date published: 2026-07-30T08:30:10Z
audio: Ligeti: Lontano
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.4
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.144
  additional property: Energy
    type: PropertyValue
    value: 0.06
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.944
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.939
  additional property: Liveness
    type: PropertyValue
    value: 0.141
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.024
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.367
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ligeti: Atmosphères
type: MusicRecording
duration: PT8M58S
duration ms: 538800
explicit: false
by artist: György Ligeti
by artist: Jonathan Nott
by artist: Berliner Philharmoniker
in album: The Ligeti Project
  type: MusicAlbum
  date published: 2008
isrc code: DEA800200225
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:53:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd130a9a40caf1af7a4e1a6b3190a50765be9ed822f21975849ce8eb2bc8610e0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800200225
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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 0xd130a9a40caf1af7a4e1a6b3190a50765be9ed822f21975849ce8eb2bc8610e0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEA800200225 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Ligeti: Atmosphères
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.366
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.081
  additional property: Energy
    type: PropertyValue
    value: 0.067
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.742
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.106
  additional property: Liveness
    type: PropertyValue
    value: 0.345
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.03
  additional property: Loudness (dB)
    type: PropertyValue
    value: -34.167
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ligeti: Clocks and Clouds
type: MusicRecording
duration: PT14M27S
duration ms: 867866
explicit: false
by artist: György Ligeti
by artist: Reinbert de Leeuw
by artist: Asko Ensemble
by artist: Cappella Amsterdam
by artist: Schönberg Ensemble
in album: The Ligeti Project
  type: MusicAlbum
  date published: 2008
isrc code: DEA800200286
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66b3e76b85e07d2a58881caa08ebd92e5a0bb2c555cb1de77bdb93ad3b6c1f2c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960500
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800200286
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:13:03Z
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 0x66b3e76b85e07d2a58881caa08ebd92e5a0bb2c555cb1de77bdb93ad3b6c1f2c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEA800200286 — a six-check JSON result.
  date published: 2026-08-01T03:13:03Z
audio: Ligeti: Clocks and Clouds
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.349
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.081
  additional property: Energy
    type: PropertyValue
    value: 0.039
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.908
  additional property: Liveness
    type: PropertyValue
    value: 0.132
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.026
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.455
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ligeti: Requiem: IV. Lacrimosa. Molto lento
type: MusicRecording
duration: PT5M32S
duration ms: 332853
explicit: false
by artist: György Ligeti
by artist: Jonathan Nott
by artist: Caroline Stein
by artist: London Voices
by artist: Margriet van Reisen
by artist: Berliner Philharmoniker
in album: The Ligeti Project
  type: MusicAlbum
  date published: 2008
isrc code: DEA800300352
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T11:21:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb89ead4f49d393c7a5b96f30a3553c99ca2612d4bd7a1964192eb3b139471335
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800300352
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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 0xb89ead4f49d393c7a5b96f30a3553c99ca2612d4bd7a1964192eb3b139471335. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEA800300352 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Ligeti: Requiem: IV. Lacrimosa. Molto lento
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 150.01
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.125
  additional property: Energy
    type: PropertyValue
    value: 0.013
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.766
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.244
  additional property: Liveness
    type: PropertyValue
    value: 0.133
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.026
  additional property: Loudness (dB)
    type: PropertyValue
    value: -38.595
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ligeti : Project Vol.3 - Cello Concerto, Clocks & Clouds, Violin Concerto & Síppal, Dobbal, Nádihegedüvel
type: MusicAlbum
date published: 2002-09-01
track: Ligeti: Cello Concerto: I. —
  type: MusicRecording
  duration: PT6M56S
  duration ms: 416133
  explicit: false
  by artist: György Ligeti
  by artist: Reinbert de Leeuw
  by artist: Asko Ensemble
  by artist: Schönberg Ensemble
  by artist: Siegfried Palm
  in album: Ligeti : Project Vol.3 - Cello Concerto, Clocks & Clouds, Violin Concerto & Síppal, Dobbal, Nádihegedüvel
    type: MusicAlbum
    date published: 2002-09-01
  isrc code: DEA800200284
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T03:42:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcd0baecf42a95e7ee119e533a34b942d306e22ac4240ae081250c7933fd0fb5c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960344
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960344
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800200284
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T04:14:58Z
  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 0xcd0baecf42a95e7ee119e533a34b942d306e22ac4240ae081250c7933fd0fb5c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEA800200284 — a six-check JSON result.
    date published: 2026-07-31T04:14:58Z
  audio: Ligeti: Cello Concerto: I. —
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 91.85
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.062
    additional property: Energy
      type: PropertyValue
      value: 0.006
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.546
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.875
    additional property: Liveness
      type: PropertyValue
      value: 0.182
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.021
    additional property: Loudness (dB)
      type: PropertyValue
      value: -40.923
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Ligeti: Cello Concerto: II. —
  type: MusicRecording
  duration: PT7M25S
  duration ms: 445373
  explicit: false
  by artist: György Ligeti
  by artist: Reinbert de Leeuw
  by artist: Asko Ensemble
  by artist: Schönberg Ensemble
  by artist: Siegfried Palm
  in album: Ligeti : Project Vol.3 - Cello Concerto, Clocks & Clouds, Violin Concerto & Síppal, Dobbal, Nádihegedüvel
    type: MusicAlbum
    date published: 2002-09-01
  isrc code: DEA800200285
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T17:28:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa9b670e7d84f4d58ce6b0dba406ff32dde93dc2233cd7095a60bf6f4666296f9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960448
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960448
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800200285
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T18:48:12Z
  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 0xa9b670e7d84f4d58ce6b0dba406ff32dde93dc2233cd7095a60bf6f4666296f9. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEA800200285 — a six-check JSON result.
    date published: 2026-07-31T18:48:12Z
  audio: Ligeti: Cello Concerto: II. —
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.986
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.166
    additional property: Energy
      type: PropertyValue
      value: 0.081
    additional property: Speechiness
      type: PropertyValue
      value: 0.072
    additional property: Acousticness
      type: PropertyValue
      value: 0.916
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.229
    additional property: Liveness
      type: PropertyValue
      value: 0.127
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.074
    additional property: Loudness (dB)
      type: PropertyValue
      value: -31.08
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Ligeti: Clocks and Clouds
  type: MusicRecording
  duration: PT14M27S
  duration ms: 867866
  explicit: false
  by artist: György Ligeti
  by artist: Reinbert de Leeuw
  by artist: Asko Ensemble
  by artist: Cappella Amsterdam
  by artist: Schönberg Ensemble
  in album: Ligeti : Project Vol.3 - Cello Concerto, Clocks & Clouds, Violin Concerto & Síppal, Dobbal, Nádihegedüvel
    type: MusicAlbum
    date published: 2002-09-01
  isrc code: DEA800200286
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T01:24:01+00:00
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Ligeti: Clocks and Clouds
track: Ligeti: Violin Concerto: I. Praeludium. Vivacissimo luminoso

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x66b3e76b85e07d2a58881caa08ebd92e5a0bb2c555cb1de77bdb93ad3b6c1f2c

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960185

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960185

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800200286

OTSTimestamp
type: PropertyValue
value: 2026-07-30T01:32:48Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b3e76b85e07d2a58881caa08ebd92e5a0bb2c555cb1de77bdb93ad3b6c1f2c. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/DEA800200286 — a six-check JSON result.
date published: 2026-07-30T01:32:48Z

Ligeti: Clocks and Clouds
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 105.349
additional property: Musical Key
  type: PropertyValue
  value: 6
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 6
additional property: Danceability
  type: PropertyValue
  value: 0.081
additional property: Energy
  type: PropertyValue
  value: 0.039
additional property: Speechiness
  type: PropertyValue
  value: 0.035
additional property: Acousticness
  type: PropertyValue
  value: 0.943
additional property: Instrumentalness
  type: PropertyValue
  value: 0.908
additional property: Liveness
  type: PropertyValue
  value: 0.132
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.026
additional property: Loudness (dB)
  type: PropertyValue
  value: -32.455
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Major

Ligeti: Violin Concerto: I. Praeludium. Vivacissimo luminoso
type: MusicRecording
duration: PT4M13S
duration ms: 253493
explicit: false
by artist: György Ligeti
by artist: Frank Peter Zimmermann
by artist: Asko Ensemble
by artist: Schönberg Ensemble
by artist: Reinbert de Leeuw
in album: Ligeti : Project Vol.3 - Cello Concerto, Clocks & Clouds, Violin Concerto & Síppal, Dobbal, Nádihegedüvel
  type: MusicAlbum
  date published: 2002-09-01
isrc code: DEA800200287
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T12:40:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc8299b26e59fe5a97c5ee66a0c299436ee75260b0db91ae90abb264f421a60bd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960403
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960403
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800200287
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:04:34Z
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 0xc8299b26e59fe5a97c5ee66a0c299436ee75260b0db91ae90abb264f421a60bd. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEA800200287 — a six-check JSON result.
  date published: 2026-07-31T13:04:34Z
audio: Ligeti: Violin Concerto: I. Praeludium. Vivacissimo luminoso
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.961
  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: 0.431
  additional property: Energy
    type: PropertyValue
    value: 0.223
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.897
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.101
  additional property: Liveness
    type: PropertyValue
    value: 0.339
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.407
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.621
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Stravinsky, Janáček, Bartók: Village Stories
type: MusicAlbum
date published: 2023-10-27

The Apocalypse of Enoch
type: MusicAlbum
date published: 2000-01-25

Stravinsky: Les Noces (1917 and 1923 Versions)
type: MusicAlbum
date published: 2014-07-15

Reich: Music for 18 Musicians
type: MusicAlbum
date published: 2014-07-15
track: Music for 18 Musicians
  type: MusicRecording
  duration: PT61M9S
  duration ms: 3669320
  explicit: false
  by artist: Steve Reich
  by artist: Ida Szabo
  by artist: Ágnes Dobszay
  by artist: Zsuzsanna Lukin
  by artist: Katalin Károlyi
  by artist: Janos Maczak
  by artist: Zoltán Rácz
  by artist: György Oravecz
  by artist: Zsolt Sarkany
  by artist: Zoltán Váczi
  by artist: Karoly Bojtos
  by artist: Benedek Tóth
  by artist: Tibor Nemes
  by artist: Gergely Bíró
  by artist: Aurél Holló
  by artist: Amadinda Percussion Group
  by artist: Group 180
  in album: Reich: Music for 18 Musicians
    type: MusicAlbum
    date published: 2014-07-15
  isrc code: HUA253220801
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-21T22:28:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbcdbff1fe303805706b816b1c56877ba3af38e08b65703954994d460eec92e58
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253220801
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 0xbcdbff1fe303805706b816b1c56877ba3af38e08b65703954994d460eec92e58. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUA253220801 — a six-check JSON result.
    date published: 2026-07-02T03:30:09Z
  audio: Music for 18 Musicians
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 123.576
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.556
    additional property: Energy
      type: PropertyValue
      value: 0.714
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.927
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.867
    additional property: Liveness
      type: PropertyValue
      value: 0.671
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.316
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.882
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Hungarian Jazz History, Vol. 13: Ragtime!
type: MusicAlbum
date published: 2014-07-15
track: Whistling Rufus
  type: MusicRecording
  duration: PT3M47S
  duration ms: 227466
  explicit: false
  by artist: Benkó Dixieland Band
  in album: Hungarian Jazz History, Vol. 13: Ragtime!
    type: MusicAlbum
    date published: 2014-07-15
  isrc code: HUA257116202
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T12:45:21+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1be6c82ca42893b4ba95b89f4845611a6319785293cd74f13c0a91af3a3dfae3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960403
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960403
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA257116202
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T13:04:34Z
  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 0x1be6c82ca42893b4ba95b89f4845611a6319785293cd74f13c0a91af3a3dfae3. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/HUA257116202 — a six-check JSON result.
    date published: 2026-07-31T13:04:34Z
  audio: Whistling Rufus
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 127.829
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.677
    additional property: Energy
      type: PropertyValue
      value: 0.652
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.262
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.05
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.958
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.999
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: At a Georgia Camp Meeting
  type: MusicRecording
  duration: PT2M59S
  duration ms: 179800
  explicit: false
  by artist: Benkó Dixieland Band
  in album: Hungarian Jazz History, Vol. 13: Ragtime!
    type: MusicAlbum
    date published: 2014-07-15
  isrc code: HUA257116203
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T20:36:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x533e10369713fe01054a89418634ab5eca8a820ca64343a6bd12442c205e07fe
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960468
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960468
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA257116203
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T21:25:57Z
  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 0x533e10369713fe01054a89418634ab5eca8a820ca64343a6bd12442c205e07fe. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/HUA257116203 — a six-check JSON result.
    date published: 2026-07-31T21:25:57Z
  audio: At a Georgia Camp Meeting
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 187.025
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.442
    additional property: Energy
      type: PropertyValue
      value: 0.677
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.155
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.293
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.962
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.58
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Panama Rag
  type: MusicRecording
  duration: PT2M50S
  duration ms: 170746
  explicit: false
  by artist: Benkó Dixieland Band
  in album: Hungarian Jazz History, Vol. 13: Ragtime!
    type: MusicAlbum
    date published: 2014-07-15
  isrc code: HUA257116204
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T15:00:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf13fc9a84ceddcb510757f5c4bb5f6a736df6ff90890f103e13d66ec74c66957
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960418
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960418
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA257116204
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Panama Rag
track: Muskrat Ramble

OTSTimestamp
type: PropertyValue
value: 2026-07-31T15:20:15Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13fc9a84ceddcb510757f5c4bb5f6a736df6ff90890f103e13d66ec74c66957. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/HUA257116204 — a six-check JSON result.
date published: 2026-07-31T15:20:15Z

Panama Rag
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 125.378
additional property: Musical Key
  type: PropertyValue
  value: 5
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.644
additional property: Energy
  type: PropertyValue
  value: 0.522
additional property: Speechiness
  type: PropertyValue
  value: 0.044
additional property: Acousticness
  type: PropertyValue
  value: 0.244
additional property: Instrumentalness
  type: PropertyValue
  value: 0.061
additional property: Liveness
  type: PropertyValue
  value: 0.064
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.948
additional property: Loudness (dB)
  type: PropertyValue
  value: -12.107
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

Muskrat Ramble
type: MusicRecording
duration: PT2M47S
duration ms: 167600
explicit: false
by artist: Benkó Dixieland Band
in album: Hungarian Jazz History, Vol. 13: Ragtime!
  type: MusicAlbum
  date published: 2014-07-15
isrc code: HUA257116205
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T04:30:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x252476cd5b440fd81347420445d0931cdc72da990a9436703d124437049474a2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960348
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960348
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA257116205
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:17:02Z
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 0x252476cd5b440fd81347420445d0931cdc72da990a9436703d124437049474a2. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/HUA257116205 — a six-check JSON result.
  date published: 2026-07-31T05:17:02Z
audio: Muskrat Ramble
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.331
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.629
  additional property: Energy
    type: PropertyValue
    value: 0.492
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.703
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.383
  additional property: Liveness
    type: PropertyValue
    value: 0.038
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.957
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.556
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Marta: Glass Blower's Seventh Dream (The) / Tamad A Szel (The Wind Attacks) / Kapolcs Alarm
type: MusicAlbum
date published: 2014-07-15

The Hanged
type: MusicAlbum
date published: 1999-05-15

Cage: Works for Percussion, Vol. 2 - Legacies 3
type: MusicAlbum
date published: 2014-11-01

Sary: Works for Percussion
type: MusicAlbum
date published: 2014-07-15

Hungary Amadinda, Locomotiv Gt, Trio Stendhal: Zorr
type: MusicAlbum
date published: 2014-07-15

Marta: Anatomy of A Scream / The Wind Arises / Story From A Doll's House
type: MusicAlbum
date published: 2014-07-15

Sugar, M.: Mosaic / Musica Agile / Dissolves / Cloud Variations / Reminiscences / Chorea / Meetings
type: MusicAlbum
date published: 2014-07-15

Lang: Violin Sonata / Cello Sonata / Canto / Viviofa
type: MusicAlbum
date published: 2014-07-15

Gemesi: Church at Dawn / Portrait of Istvan Macsai / Pavane Pour Une Infante Defunte / Clods / Duo
type: MusicAlbum
date published: 2014-07-15

Dubrovay: Hungarian Sounds
type: MusicAlbum
date published: 2014-07-15

Hollo / Vaczi: Before John
type: MusicAlbum
date published: 2014-07-15

Cage: Works for Percussion, Vol. 5 (1936-1991)
type: MusicAlbum
date published: 2014-07-15

Cage: Works for Percussion, Vol. 4 (1940-1956)
type: MusicAlbum
date published: 2014-07-15

Cage: Works for Percussion, Vol. 1 (1935-1941)
type: MusicAlbum
date published: 2014-07-15

Cage: 4'33" / Varese: Ionisation / Chavez: Toccata
type: MusicAlbum
date published: 2014-07-15

Amadinda Percussion Group: Legacies 5 - Live Recordings 1989-1999
type: MusicAlbum
date published: 2014-07-15

Reich: Music for 18 Musicians
type: MusicAlbum
date published: 2014-07-15
track: Music for 18 Musicians
  type: MusicRecording
  duration: PT61M9S
  duration ms: 3669320
  explicit: false
  by artist: Steve Reich
  by artist: Ida Szabo
  by artist: Ágnes Dobszay
  by artist: Zsuzsanna Lukin
  by artist: Katalin Károlyi
  by artist: Janos Maczak
  by artist: Zoltán Rácz
  by artist: György Oravecz
  by artist: Zsolt Sarkany
  by artist: Zoltán Váczi
  by artist: Karoly Bojtos
  by artist: Benedek Tóth
  by artist: Tibor Nemes
  by artist: Gergely Bíró
  by artist: Aurél Holló
  by artist: Amadinda Percussion Group
  by artist: Group 180
  in album: Reich: Music for 18 Musicians
    type: MusicAlbum
    date published: 2014-07-15
  isrc code: HUA253220801
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-21T22:28:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbcdbff1fe303805706b816b1c56877ba3af38e08b65703954994d460eec92e58
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253220801
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0xbcdbff1fe303805706b816b1c56877ba3af38e08b65703954994d460eec92e58. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HUA253220801 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Music for 18 Musicians
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 123.635
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.553
    additional property: Energy
      type: PropertyValue
      value: 0.714
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.927
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.867
    additional property: Liveness
      type: PropertyValue
      value: 0.671
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.318
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.882
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Hungarian Jazz History, Vol. 13: Ragtime!
type: MusicAlbum
date published: 2014-07-15

Marta: Glass Blower's Seventh Dream (The) / Tamad A Szel (The Wind Attacks) / Kapolcs Alarm
type: MusicAlbum
date published: 2014-07-15

Marta: Anatomy of A Scream / The Wind Arises / Story From A Doll's House
type: MusicAlbum
date published: 2014-07-15

Sary: Works for Percussion
type: MusicAlbum
date published: 2014-07-15

Hungary Amadinda, Locomotiv Gt, Trio Stendhal: Zorr
type: MusicAlbum
date published: 2014-07-15

Sugar, M.: Mosaic / Musica Agile / Dissolves / Cloud Variations / Reminiscences / Chorea / Meetings
type: MusicAlbum
date published: 2014-07-15

Lang: Violin Sonata / Cello Sonata / Canto / Viviofa
type: MusicAlbum
date published: 2014-07-15