Anton Diabelli
type: MusicGroup
description: 210px|thumb|Anton Diabelli, lithograph by Josef Kriehuber Anton (or Antonio) Diabelli (5 September 17818 April 1858) was an Austrian music publisher, editor and composer. Best known in his time as a
popularity: 20
followers: 1180
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4826ad1939e721c44be39014bcfab2bf907a115ff3b0c2db4465d49a99f6448b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93956035-d1e0-40dc-9d4a-a9b75296ff7a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93956035-d1e0-40dc-9d4a-a9b75296ff7a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/93956035-d1e0-40dc-9d4a-a9b75296ff7a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4826ad1939e721c44be39014bcfab2bf907a115ff3b0c2db4465d49a99f6448b","name":"Anton Diabelli","registered_at":"2026-06-14T20:00:13Z","symbol":"NIM0560751","token_address":"0x25762ca3ac4e9631f60c2e55508df0873f7d8ce0","type":"artist","uuid":"93956035-d1e0-40dc-9d4a-a9b75296ff7a"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4826ad1939e721c44be39014bcfab2bf907a115ff3b0c2db4465d49a99f6448b. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93956035-d1e0-40dc-9d4a-a9b75296ff7a.json and https://artists.proofprofile.net/proofs/artist/93956035-d1e0-40dc-9d4a-a9b75296ff7a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x4826ad1939e721c44be39014bcfab2bf907a115ff3b0c2db4465d49a99f6448b","name":"Anton Diabelli","registered_at":"2026-06-14T20:00:13Z","symbol":"NIM0560751","token_address":"0x25762ca3ac4e9631f60c2e55508df0873f7d8ce0","type":"artist","uuid":"93956035-d1e0-40dc-9d4a-a9b75296ff7a"}
album: Diabelli: Opere per chitarra e fortepiano
  type: MusicAlbum
  date published: 1994-01-01
album: Diabelli, A.: Serenate Concertante / Grande Serenade / Gesange Fur Herz Und Gefuhl / Gran Variazioni
  type: MusicAlbum
  date published: 1997-01-01
album: Diabelli: Soiree Musical
  type: MusicAlbum
  date published: 1997-01-01
album: Diabelli, A.: Serenate Concertante / Grande Serenade / Gesänge Fur Herz Und Gefuhl / Gran Variazioni
  type: MusicAlbum
  date published: 1997-01-01
album: Anton Diabelli: Oeuvres pour Flûte et Guitare
  type: MusicAlbum
  date published: 1997-06-01
album: The Diabelli Collection: Variations on a Waltz
  type: MusicAlbum
  date published: 2000
album: Diabelli: Grande Sonate Brillante
  type: MusicAlbum
  date published: 2004-01-01
album: Diabelli: Grande Sonate Brillante
  type: MusicAlbum
  date published: 2004-01-01
album: Diabelli: Complete Sonatinas and Sonatas for Fortepiano and Guitar
  type: MusicAlbum
  date published: 2005-01-01
album: Diabelli: Complete Sonatinas and Sonatas for Fortepiano and Guitar
  type: MusicAlbum
  date published: 2005-01-01
album: MusicAlbum
  name: Play It - Study Album - Piano / Klavier; Anton Diabelli: Sonatina "Jugendfreuden", Op. 163, No. 2 in G Major / G-Dur (Piano Accompaniment / Klavierbegleitung - Piano Four Hands / Klavier Vierhändig - A' = 443 Hz)
  date published: 2005-08-08
album: Play It - Study Album - Piano / Klavier; Anton Diabelli: Melodic Exercises / Melodische Übungsstücke, Op. 149, No. 1 - 10 (Piano Four Hands / Klavier Vierhändig)
  type: MusicAlbum
  date published: 2005-08-08
album: MusicAlbum
  name: Play It - Study Album - Piano/Klavier; Anton Diabelli: Sonatine IV "Jugendfreuden" D Major, Op. 163 No. 4 (Piano Accompaniment / Klavierbegleitung - Piano four Hands / Klavier vierhändig - Concert Pitch / Stimmton a' = 443 Hz)
  date published: 2006-05-30
album: Play It - Study Album - Piano / Klavier; Anton Diabelli: 2 Sonatinas in C Major / C-Dur + G Major / G-Dur, No. 1 + 2, Op. 24 (Piano Four Hands / Klavier Vierhändig)
  type: MusicAlbum
  date published: 2006-05-31
album: Play It - Study Album - Klavier/Piano; Anton Diabelli: Jugendfreuden, Op. 163, No. 6 Sonatina in D Minor/D-Moll (Piano four Hands / Klavier vierhändig - a' = 443 Hz)
  type: MusicAlbum
  date published: 2006-07-04
album: MusicAlbum
  name: Play It - Study Album - Piano / Klavier; Anton Diabelli: Sonatine V "Jugendfreuden" A Major / A-Dur, Op. 163 No. 5 (Piano Accompaniment / Klavierbegleitung - Piano four Hands / Klavier vierhändig - Concert Pitch / Stimmton a' = 443 Hz)
  date published: 2006-09-30
album: Diabelli: Melodious Exercises Op. 149 (Digitally Remastered)
  type: MusicAlbum
  date published: 2010-11-23
album: Diabelli: Complete Guitar Sonatas
  type: MusicAlbum
  date published: 2012-03-28
album: Diabelli: Sonatina No. 1
  type: MusicAlbum
  date published: 2014-02-13
album: Diabelli: Sonatas for Piano 4 Hands, Opp. 32 & 38
  type: MusicAlbum
  date published: 2015-04-01
album: Anton Diabelli: Melodische Übungstück
  type: MusicAlbum
  date published: 2017-02-22
album: Anton Diabelli: Melodious Exercises Op.149
  type: MusicAlbum
  date published: 2017-02-28
album: Diabelli: The 11 Sonatinas for Piano
  type: MusicAlbum
  date published: 2018-10-13
album: Diabelli: 3 Sonatas, Op. 39
  type: MusicAlbum
  date published: 2019-01-14
album: Piezas melódicas Op. 149 (Segunda parte)
  type: MusicAlbum
  date published: 2020-10-28
album: Piezas melódicas Op. 149 (Primera parte)
  type: MusicAlbum
  date published: 2020-10-28
album: Diabelli: The First 12 Studies For The Piano Op. 125
  type: MusicAlbum
  date published: 2021-05-09
album: Diabelli: Grande Sonata Brillante, Op. 102
  type: MusicAlbum
  date published: 2021-06-11
album: Diabelli: Works for Flute and Guitar
  type: MusicAlbum
  date published: 2021-08-13
album: 12 Ländler In C de Anton Diabelli
  type: MusicAlbum
  date published: 2022-02-05
album: Latin American Variations on an Anton Diabelli Theme
  type: MusicAlbum
  date published: 2022-11-17
album: Melodic Exercises
  type: MusicAlbum
  date published: 2023-08-20
album: Sonate pour la guitare seul 0p. 29/1
  type: MusicAlbum
  date published: 2024-04-26
track: Trio: II. Andante cantabile
track: Trio: I. Marcia
track: Trio: III. Scherzando un poco allegro
track: Trio: IV. Menuetto: Moderato
track: Trio: V. Allegretto

Trio: II. Andante cantabile
type: MusicRecording
duration: PT2M54S
duration ms: 174226
explicit: false
by artist: Anton Diabelli
by artist: Anna Holbling
by artist: Quido Holbling
by artist: Jozef Zsapka
in album: Two Violins and One Guitar, Vol. 1
  type: MusicAlbum
  date published: 1991-02-01
popularity: 20
isrc code: HKI199323119
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T22:43:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4007801cf8c9655b3510cb35fd19b53acf287563cb1bcbd001eae39252d341c7
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/HKI199323119
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4007801cf8c9655b3510cb35fd19b53acf287563cb1bcbd001eae39252d341c7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199323119.
  date published: 2026-07-02T03:55:08Z
audio: Trio: II. Andante cantabile
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.471
  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: 0.268
  additional property: Energy
    type: PropertyValue
    value: 0.062
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.397
  additional property: Liveness
    type: PropertyValue
    value: 0.158
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.406
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.394
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Trio: I. Marcia
type: MusicRecording
duration: PT0M50S
duration ms: 50306
explicit: false
by artist: Anton Diabelli
by artist: Anna Holbling
by artist: Quido Holbling
by artist: Jozef Zsapka
in album: Two Violins and One Guitar, Vol. 1
  type: MusicAlbum
  date published: 1991-02-01
popularity: 7
isrc code: HKI199323118
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:20:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe497a967dbc1f0c5bdf5036b14a832011b85a4e36db599e3bc3aaa37b364705a
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/HKI199323118
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe497a967dbc1f0c5bdf5036b14a832011b85a4e36db599e3bc3aaa37b364705a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199323118.
  date published: 2026-07-08T03:22:41Z
audio: Trio: I. Marcia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.174
  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: 0.393
  additional property: Energy
    type: PropertyValue
    value: 0.124
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.196
  additional property: Liveness
    type: PropertyValue
    value: 0.129
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.645
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.942
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Trio: III. Scherzando un poco allegro
type: MusicRecording
duration: PT1M58S
duration ms: 118773
explicit: false
by artist: Anton Diabelli
by artist: Anna Holbling
by artist: Quido Holbling
by artist: Jozef Zsapka
in album: Two Violins and One Guitar, Vol. 1
  type: MusicAlbum
  date published: 1991-02-01
popularity: 6
isrc code: HKI199323120
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:58:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5ae635a7439d7dbbd8b0e007defb9e8f8855c5077300582299f26f692731573b
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/HKI199323120
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae635a7439d7dbbd8b0e007defb9e8f8855c5077300582299f26f692731573b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199323120.
  date published: 2026-07-08T03:20:19Z
audio: Trio: III. Scherzando un poco allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.149
  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: 0.611
  additional property: Energy
    type: PropertyValue
    value: 0.157
  additional property: Speechiness
    type: PropertyValue
    value: 0.093
  additional property: Acousticness
    type: PropertyValue
    value: 0.962
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.114
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.854
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.845
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Trio: IV. Menuetto: Moderato
type: MusicRecording
duration: PT4M32S
duration ms: 272973
explicit: false
by artist: Anton Diabelli
by artist: Anna Holbling
by artist: Quido Holbling
by artist: Jozef Zsapka
in album: Two Violins and One Guitar, Vol. 1
  type: MusicAlbum
  date published: 1991-02-01
popularity: 6
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a7ef6efb5ab2086625f11084341819305345458b372e6a09f19d6da0cb7f3f. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199323121.
  date published: 2026-07-30T15:42:38Z
audio: Trio: IV. Menuetto: Moderato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.301
  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: 0.031
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.073
  additional property: Liveness
    type: PropertyValue
    value: 0.128
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.176
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.739
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI199323121
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960273
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T15:42:38+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199323121
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960273
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960273
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Trio: V. Allegretto
type: MusicRecording
duration: PT2M50S
duration ms: 170573
explicit: false
by artist: Anton Diabelli
by artist: Anna Holbling
by artist: Quido Holbling
by artist: Jozef Zsapka
in album: Two Violins and One Guitar, Vol. 1
  type: MusicAlbum
  date published: 1991-02-01
popularity: 6
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6189cf8b002b55254bbc37b823d3321324b982474e66e19298cb31aa77d9bcc. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199323122.
  date published: 2026-07-30T12:51:24Z
audio: Trio: V. Allegretto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.663
  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: 0.62
  additional property: Energy
    type: PropertyValue
    value: 0.194
  additional property: Speechiness
    type: PropertyValue
    value: 0.066
  additional property: Acousticness
    type: PropertyValue
    value: 0.942
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.768
  additional property: Liveness
    type: PropertyValue
    value: 0.257
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.848
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.621
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI199323122
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960259
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T12:51:24+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199323122
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960259
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960259
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T12:51:24+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch