Massimo Colombo
type: MusicGroup
popularity: 37
followers: 17786
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e4eff3e0f144847fced647a72c8d53273b0399323edeed28b1d524f8fe2e8f3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5105252-d6a3-4345-9085-7c25d70bd72c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5105252-d6a3-4345-9085-7c25d70bd72c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d5105252-d6a3-4345-9085-7c25d70bd72c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8e4eff3e0f144847fced647a72c8d53273b0399323edeed28b1d524f8fe2e8f3","name":"Massimo Colombo","registered_at":"2026-06-12T10:49:47Z","symbol":"NIM0275015","token_address":"0x04215e01a0f49f973eb350821ac3972a656f9bb5","type":"artist","uuid":"d5105252-d6a3-4345-9085-7c25d70bd72c"}
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 0x8e4eff3e0f144847fced647a72c8d53273b0399323edeed28b1d524f8fe2e8f3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5105252-d6a3-4345-9085-7c25d70bd72c.json and https://artists.proofprofile.net/proofs/artist/d5105252-d6a3-4345-9085-7c25d70bd72c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x8e4eff3e0f144847fced647a72c8d53273b0399323edeed28b1d524f8fe2e8f3","name":"Massimo Colombo","registered_at":"2026-06-12T10:49:47Z","symbol":"NIM0275015","token_address":"0x04215e01a0f49f973eb350821ac3972a656f9bb5","type":"artist","uuid":"d5105252-d6a3-4345-9085-7c25d70bd72c"}
album: Mondo
  type: MusicAlbum
  date published: 1999
album: Salti ed Assalti
  type: MusicAlbum
  date published: 1999
album: Sole
  type: MusicAlbum
  date published: 2000
album: Luna
  type: MusicAlbum
  date published: 2001
album: Massimo Colombo World Ensemble (Chamber Music)
  type: MusicAlbum
  date published: 2002-10-01
album: Immagini
  type: MusicAlbum
  date published: 2004-06-01
album: Caravaggio
  type: MusicAlbum
  date published: 2005
album: The Piano and the Other Side of the World
  type: MusicAlbum
  date published: 2007-02-16
album: Preludi apolidi (Per pianoforte)
  type: MusicAlbum
  date published: 2013-05-13
album: Relazioni e rapporti (feat. Paolo Fresu, Franco D'andrea)
  type: MusicAlbum
  date published: 2013-06-12
album: Games Op.101
  type: MusicAlbum
  date published: 2013-06-13
album: Trio Grande
  type: MusicAlbum
  date published: 2015-04-30
album: We All Love Burt Bacharach
  type: MusicAlbum
  date published: 2016-11-04
album: Celebrating John Williams (Solo Piano)
  type: MusicAlbum
  date published: 2017-02-03
album: Celebrating John Williams
  type: MusicAlbum
  date published: 2017-03-03
album: Tempered Blues
  type: MusicAlbum
  date published: 2017-04-27
album: Powell to the People
  type: MusicAlbum
  date published: 2018-01-26
album: 30 Giochi for Piano, Op. 344
  type: MusicAlbum
  date published: 2018-06-07
album: Virtualmente
  type: MusicAlbum
  date published: 2018-09-13
album: Trio Grande
  type: MusicAlbum
  date published: 2018-09-15
album: 21 Studi Op.66 (For Piano)
  type: MusicAlbum
  date published: 2019-01-03
album: Acoustic Weather (The Music of Weather Report)
  type: MusicAlbum
  date published: 2019-05-13
album: Pure Classical Piano Vibes
  type: MusicAlbum
  date published: 2019-06-28
album: Elizabeth
  type: MusicAlbum
  date published: 2019-07-12
album: Elizabeth
  type: MusicAlbum
  date published: 2019-07-12
album: Marie
  type: MusicAlbum
  date published: 2019-08-23
album: Marie
  type: MusicAlbum
  date published: 2019-08-23
album: Albert
  type: MusicAlbum
  date published: 2019-09-27
album: Albert
  type: MusicAlbum
  date published: 2019-09-27
album: Romantic and Impressionist Piano Masterworks
  type: MusicAlbum
  date published: 2019-10-11
album: Lucrezia
  type: MusicAlbum
  date published: 2019-10-25
album: Merry Christmas From My Piano...and Surroundings
  type: MusicAlbum
  date published: 2019-11-22
album: Pitagora
  type: MusicAlbum
  date published: 2020-02-14
album: Pitagora
  type: MusicAlbum
  date published: 2020-02-14
album: Preludi Apolidi Op. 277 for Piano
  type: MusicAlbum
  date published: 2020-02-28
  track: Preludio No. 3
    type: MusicRecording
    duration: PT1M49S
    duration ms: 109400
    explicit: false
    by artist: Massimo Colombo
    in album: Preludi Apolidi Op. 277 for Piano
      type: MusicAlbum
      date published: 2020-02-28
    isrc code: GBAZM2000009
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T20:03:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe6ae3bc27b874ea2afec0380449cc5e7bd234ebb9696647f5d3b7a9156aa9c94
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958690
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958690
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAZM2000009
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:14:39Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ae3bc27b874ea2afec0380449cc5e7bd234ebb9696647f5d3b7a9156aa9c94. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAZM2000009.
      date published: 2026-07-19T07:14:39Z
    audio: Preludio No. 3
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 76.464
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.419
      additional property: Energy
        type: PropertyValue
        value: 0.025
      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: Preludio No. 5
  track: Preludio No. 7
  track: Preludio No. 9
album: Frida
album: Coco (Gabrielle)
album: Ludwig
album: Vincent
album: Cleopatra
album: Ingmar
album: Personalities
album: 7 pezzi per la mano sinistra for Piano, Op. 269
album: 25 Pezzi Facili for Piano, Op. 231
album: Electric Bass Sonata, Op. 640
album: Vibrafono Sonata, Op. 639
album: Nocturne No. 1, Op. 581
album: Nocturne No. 2, Op. 581
album: Nocturne No. 3, Op. 581
album: Nocturne No. 4, Op. 581
album: A Nice Tree
album: The Mountains Sing
album: Nocturne No. 5, Op. 581
album: Cloudy Day
album: Nocturne No. 6, Op. 581
album: Nocturne No. 7, Op. 581
album: When It Rains
album: Nocturne No. 8, Op. 581
album: Nocturnes Op. 581 for Piano
album: Magic Forest
album: White Roses
album: Three
album: Eleven
album: Seventy
album: The Path

Speechiness
type: PropertyValue
value: 0.073

Acousticness
type: PropertyValue
value: 0.993

Instrumentalness
type: PropertyValue
value: 0.917

Liveness
type: PropertyValue
value: 0.081

Valence (Positivity)
type: PropertyValue
value: 0.076

Loudness (dB)
type: PropertyValue
value: -28.53

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

Preludio No. 5
type: MusicRecording
duration: PT2M54S
duration ms: 174312
explicit: false
by artist: Massimo Colombo
in album: Preludi Apolidi Op. 277 for Piano
  type: MusicAlbum
  date published: 2020-02-28
isrc code: GBAZM2000011
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-02T21:14:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7b5862898c161da8579f4ae181fef4d740567763f0ea7df80e3b645585604332
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956404
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956404
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAZM2000011
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T02:48:48Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5862898c161da8579f4ae181fef4d740567763f0ea7df80e3b645585604332. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:48:48Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAZM2000011.
  date published: 2026-07-17T02:48:48Z
audio: Preludio No. 5
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.733
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.405
  additional property: Energy
    type: PropertyValue
    value: 0.03
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.891
  additional property: Liveness
    type: PropertyValue
    value: 0.127
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.095
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.273
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Preludio No. 7
type: MusicRecording
duration: PT1M47S
duration ms: 107727
explicit: false
by artist: Massimo Colombo
in album: Preludi Apolidi Op. 277 for Piano
  type: MusicAlbum
  date published: 2020-02-28
isrc code: GBAZM2000013
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T16:42:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xabf5887a57c36e3559cf0229bdb2e2c367dea5e06c8eb186f019cc53bd43f779
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956725
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956725
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAZM2000013
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf5887a57c36e3559cf0229bdb2e2c367dea5e06c8eb186f019cc53bd43f779. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBAZM2000013.
  date published: 2026-07-05T01:12:41Z
audio: Preludio No. 7
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.475
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.358
  additional property: Energy
    type: PropertyValue
    value: 0.012
  additional property: Speechiness
    type: PropertyValue
    value: 0.063
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.817
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.175
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.363
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Preludio No. 9
type: MusicRecording
duration: PT2M53S
duration ms: 173250
explicit: false
by artist: Massimo Colombo
in album: Preludi Apolidi Op. 277 for Piano
  type: MusicAlbum
  date published: 2020-02-28
isrc code: GBAZM2000015
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T01:06:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8caaead65514623742b8cab596122ac5efb371374127e362f9606ada7af9a3dc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956440
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956440
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAZM2000015
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T04:03:57Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8caaead65514623742b8cab596122ac5efb371374127e362f9606ada7af9a3dc. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAZM2000015.
  date published: 2026-07-03T04:03:57Z
audio: Preludio No. 9
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 93.007
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.379
  additional property: Energy
    type: PropertyValue
    value: 0.032
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.896
  additional property: Liveness
    type: PropertyValue
    value: 0.082
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.068
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.438
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Frida
type: MusicAlbum
date published: 2020-03-13

Coco (Gabrielle)
type: MusicAlbum
date published: 2020-04-24

Coco (Gabrielle)
type: MusicAlbum
date published: 2020-04-24

Ludwig
type: MusicAlbum
date published: 2020-05-29

Vincent
type: MusicAlbum
date published: 2020-07-03

Cleopatra
type: MusicAlbum
date published: 2020-08-07

Cleopatra
type: MusicAlbum
date published: 2020-08-07

Ingmar
type: MusicAlbum
date published: 2020-09-04

Ingmar
type: MusicAlbum
date published: 2020-09-04

Personalities
type: MusicAlbum
date published: 2020-10-16

7 pezzi per la mano sinistra for Piano, Op. 269
type: MusicAlbum
date published: 2020-11-06

25 Pezzi Facili for Piano, Op. 231
type: MusicAlbum
date published: 2020-11-27
track: 25 Pezzi Facili for Piano, Op. 231: No. 17, Americana
  type: MusicRecording
  duration: PT1M41S
  duration ms: 101243
  explicit: false
  by artist: Massimo Colombo
  in album: 25 Pezzi Facili for Piano, Op. 231
    type: MusicAlbum
    date published: 2020-11-27
  isrc code: ITDC82000121
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T07:33:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa7eca2b15a3cd2f1384e7baafa9fd0974651ae9419846e2e34ab87fd0dbfbdec
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958271
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958271
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDC82000121
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T09:16:54Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7eca2b15a3cd2f1384e7baafa9fd0974651ae9419846e2e34ab87fd0dbfbdec. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/ITDC82000121.
    date published: 2026-07-16T09:16:54Z
  audio: 25 Pezzi Facili for Piano, Op. 231: No. 17, Americana
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 79.753
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.56
    additional property: Energy
      type: PropertyValue
      value: 0.03
    additional property: Speechiness
      type: PropertyValue
      value: 0.283
    additional property: Acousticness
      type: PropertyValue
      value: 0.989
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.781
    additional property: Liveness
      type: PropertyValue
      value: 0.132
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.087
    additional property: Loudness (dB)
      type: PropertyValue
      value: -30.336
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Electric Bass Sonata, Op. 640
type: MusicAlbum
date published: 2020-12-18

Vibrafono Sonata, Op. 639
type: MusicAlbum
date published: 2021-02-05

Nocturne No. 1, Op. 581
type: MusicAlbum
date published: 2021-03-05

Nocturne No. 2, Op. 581
type: MusicAlbum
date published: 2021-04-02

Nocturne No. 3, Op. 581
type: MusicAlbum
date published: 2021-05-07

Nocturne No. 4, Op. 581
type: MusicAlbum
date published: 2021-06-04

A Nice Tree
type: MusicAlbum
date published: 2021-07-02

The Mountains Sing
type: MusicAlbum
date published: 2021-08-06

Nocturne No. 5, Op. 581
type: MusicAlbum
date published: 2021-09-03

Cloudy Day
type: MusicAlbum
date published: 2021-10-01

Nocturne No. 6, Op. 581
type: MusicAlbum
date published: 2021-11-05

Nocturne No. 7, Op. 581
type: MusicAlbum
date published: 2022-01-14

When It Rains
type: MusicAlbum
date published: 2022-02-11

Nocturne No. 8, Op. 581
type: MusicAlbum
date published: 2022-03-18

Nocturnes Op. 581 for Piano
type: MusicAlbum
date published: 2022-04-15

Magic Forest
type: MusicAlbum
date published: 2022-05-13

White Roses
type: MusicAlbum
date published: 2022-06-10

Three
type: MusicAlbum
date published: 2022-07-08

Eleven
type: MusicAlbum
date published: 2022-08-05

Seventy
type: MusicAlbum
date published: 2022-09-02

The Path
type: MusicAlbum
date published: 2022-10-07

Electric Parker
type: MusicAlbum
date published: 2022-11-04

Twenty-five
type: MusicAlbum
date published: 2022-12-02

Winter Garden
type: MusicAlbum
date published: 2023-01-06

One
type: MusicAlbum
date published: 2023-02-03

Twelve
type: MusicAlbum
date published: 2023-03-03

Two
type: MusicAlbum
date published: 2023-04-07

Thirty-one
type: MusicAlbum
date published: 2023-05-05

Six
type: MusicAlbum
date published: 2023-06-02

A Wonderful Landscape
type: MusicAlbum
date published: 2023-07-07

Numbers, Op. 717
type: MusicAlbum
date published: 2023-09-01
track: Sixteen
  type: MusicRecording
  duration: PT2M12S
  duration ms: 132857
  explicit: false
  by artist: Massimo Colombo
  in album: Numbers, Op. 717
    type: MusicAlbum
    date published: 2023-09-01
  isrc code: UKAZM2300068
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T20:04:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8a4e061e6b0e710e7afea041cabd5f8c6b490d3207c5e5d44f8f7b6d90b02313
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958776
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958776
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKAZM2300068
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T20:11:59Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4e061e6b0e710e7afea041cabd5f8c6b490d3207c5e5d44f8f7b6d90b02313. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKAZM2300068.
    date published: 2026-07-19T20:11:59Z
  audio: Sixteen
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.902
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.233
    additional property: Energy
      type: PropertyValue
      value: 0.232
    additional property: Speechiness
      type: PropertyValue
      value: 0.056
    additional property: Acousticness
      type: PropertyValue
      value: 0.974
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.898
    additional property: Liveness
      type: PropertyValue
      value: 0.114
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.073
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.514
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Corale Pop
type: MusicAlbum
date published: 2023-10-06

Concerto for Piano and String Orchestra, Op. 733
type: MusicAlbum
date published: 2023-11-03

15 Immagini Op. 480 for Piano
type: MusicAlbum
date published: 2023-12-01

Golden Lotus
type: MusicAlbum
date published: 2024-01-05

Triad 1
type: MusicAlbum
date published: 2024-02-09

Triad 2
type: MusicAlbum
date published: 2024-03-15

Triad 3
type: MusicAlbum
date published: 2024-04-19

Triad 4
type: MusicAlbum
date published: 2024-05-24

Triad 5
type: MusicAlbum
date published: 2024-07-26

Triad 6
type: MusicAlbum
date published: 2024-08-30

Triad 7
type: MusicAlbum
date published: 2024-09-27

Waves and Currents
type: MusicAlbum
date published: 2024-10-25

Triad 8
type: MusicAlbum
date published: 2024-11-29
track: Triad 8
  type: MusicRecording
  duration: PT1M36S
  duration ms: 96190
  explicit: false
  by artist: Massimo Colombo
  in album: Triad 8
    type: MusicAlbum
    date published: 2024-11-29
  isrc code: UKAZM2400155
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T10:53:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb0845d90a4a54212c2502e67113c1e6d730239cc0adfbb2372adf96f1821bdac
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958722
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958722
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKAZM2400155
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T11:03:50Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0845d90a4a54212c2502e67113c1e6d730239cc0adfbb2372adf96f1821bdac. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/UKAZM2400155.
    date published: 2026-07-19T11:03:50Z
  audio: Triad 8
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 125.959
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.376
    additional property: Energy
      type: PropertyValue
      value: 0.126
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.973
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.884
    additional property: Liveness
      type: PropertyValue
      value: 0.159
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.327
    additional property: Loudness (dB)
      type: PropertyValue
      value: -28.193
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Triad 9
type: MusicAlbum
date published: 2025-01-03
track: Triad 9
  type: MusicRecording
  duration: PT2M18S
  duration ms: 138312
  explicit: false
  by artist: Massimo Colombo
  in album: Triad 9
    type: MusicAlbum
    date published: 2025-01-03
  isrc code: UKAZM2400156
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T11:04:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xeb700a82f4f74f8805e662fc70d284b0f9bf9626fb937d33dd28165e13b10ab9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKAZM2400156
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb700a82f4f74f8805e662fc70d284b0f9bf9626fb937d33dd28165e13b10ab9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKAZM2400156.
    date published: 2026-07-03T19:59:51Z
  audio: Triad 9
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 180.036
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.225
    additional property: Energy
      type: PropertyValue
      value: 0.077
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.953
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.872
    additional property: Liveness
      type: PropertyValue
      value: 0.109
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.197
    additional property: Loudness (dB)
      type: PropertyValue
      value: -28.059
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Triad 10
type: MusicAlbum
date published: 2025-02-07

Triad 11
type: MusicAlbum
date published: 2025-03-07

Triad 12
type: MusicAlbum
date published: 2025-04-04

Triads
type: MusicAlbum
date published: 2025-05-02

Nature Inside Orchestra
type: MusicAlbum
date published: 2025-05-30

Seventh 1
type: MusicAlbum
date published: 2025-06-27

Seventh 2
type: MusicAlbum
date published: 2025-07-25

Seventh 3
type: MusicAlbum
date published: 2025-08-22

Seventh 4
type: MusicAlbum
date published: 2025-09-19

Seventh 5
type: MusicAlbum
date published: 2025-10-10

Seventh 6
type: MusicAlbum
date published: 2025-11-07