Piano Tuo
type: MusicGroup
popularity: 19
followers: 113
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa40e83310c676e9e7900c02b001f01ba5cdc39e24fdf4ec4777a0f4191228fdc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953630
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953630
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/303eb210-aed6-4b3f-8d91-56ea8474e49e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/303eb210-aed6-4b3f-8d91-56ea8474e49e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/303eb210-aed6-4b3f-8d91-56ea8474e49e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T12:06:27Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa40e83310c676e9e7900c02b001f01ba5cdc39e24fdf4ec4777a0f4191228fdc","name":"Piano Tuo","registered_at":"2026-06-14T09:29:06Z","symbol":"NIM0410223","token_address":"0x206e0bbfc1b468fc93cb1ba6b31b6b938b145b07","type":"artist","uuid":"303eb210-aed6-4b3f-8d91-56ea8474e49e"}
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 0xa40e83310c676e9e7900c02b001f01ba5cdc39e24fdf4ec4777a0f4191228fdc. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/303eb210-aed6-4b3f-8d91-56ea8474e49e.json and https://artists.proofprofile.net/proofs/artist/303eb210-aed6-4b3f-8d91-56ea8474e49e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T12:06:27Z
  text: {"copyright_id":"0xa40e83310c676e9e7900c02b001f01ba5cdc39e24fdf4ec4777a0f4191228fdc","name":"Piano Tuo","registered_at":"2026-06-14T09:29:06Z","symbol":"NIM0410223","token_address":"0x206e0bbfc1b468fc93cb1ba6b31b6b938b145b07","type":"artist","uuid":"303eb210-aed6-4b3f-8d91-56ea8474e49e"}
album: Piano Tuo
  type: MusicAlbum
  date published: 2021-09-26
album: Sole
  type: MusicAlbum
  date published: 2021-10-29
album: Forest
  type: MusicAlbum
  date published: 2021-11-26
album: Tristesse
  type: MusicAlbum
  date published: 2021-12-26
album: January C
  type: MusicAlbum
  date published: 2022-04-29
album: February G
  type: MusicAlbum
  date published: 2022-05-13
album: March D
  type: MusicAlbum
  date published: 2022-07-29
album: April A
  type: MusicAlbum
  date published: 2022-08-12
album: May E
  type: MusicAlbum
  date published: 2022-08-26
album: June B
  type: MusicAlbum
  date published: 2022-11-18
album: Piano Songs
  type: MusicAlbum
  date published: 2022-12-16
album: July F#
  type: MusicAlbum
  date published: 2023-01-20
album: August Db
  type: MusicAlbum
  date published: 2023-02-24
  track: Lincoln
    type: MusicRecording
    duration: PT1M31S
    duration ms: 91881
    explicit: false
    by artist: Piano Tuo
    in album: August Db
      type: MusicAlbum
      date published: 2023-02-24
    isrc code: BCCSO2300016
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T08:20:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x62770adb564b3d7e0d2ffe07f02787185b42f148d486042e12e9aa89769f9637
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958853
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958853
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCCSO2300016
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T11:23:33Z
    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 0x62770adb564b3d7e0d2ffe07f02787185b42f148d486042e12e9aa89769f9637. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:23:33Z), 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/BCCSO2300016.
      date published: 2026-07-20T11:23:33Z
    audio: Lincoln
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 137.303
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.426
      additional property: Energy
        type: PropertyValue
        value: 0.001
      additional property: Speechiness
        type: PropertyValue
        value: 0.079
      additional property: Acousticness
        type: PropertyValue
        value: 0.995
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.941
      additional property: Liveness
        type: PropertyValue
        value: 0.322
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.24
      additional property: Loudness (dB)
        type: PropertyValue
        value: -37.759
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: September Ab
  type: MusicAlbum
  date published: 2023-03-17
album: October Eb
  type: MusicAlbum
  date published: 2023-04-07
album: Sleep
  type: MusicAlbum
  date published: 2023-04-21
  track: Keep Calm
    type: MusicRecording
    duration: PT1M35S
    duration ms: 95500
    explicit: false
    by artist: Piano Tuo
    in album: Sleep
      type: MusicAlbum
      date published: 2023-04-21
    isrc code: BCCSO2300052
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T12:28:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe6b502146a005902245a4408027623f083814333274780de7c44c514eed7f9c9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958734
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958734
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCCSO2300052
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T12:54:58Z
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Keep Calm
  track: Piano Sleep
album: November Bb
album: December F
album: Keys and Wind
album: Sonate de Lune

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b502146a005902245a4408027623f083814333274780de7c44c514eed7f9c9. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCCSO2300052.
date published: 2026-07-19T12:54:58Z

Keep Calm
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 132.47
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.558
additional property: Energy
  type: PropertyValue
  value: 0.182
additional property: Speechiness
  type: PropertyValue
  value: 0.059
additional property: Acousticness
  type: PropertyValue
  value: 0.956
additional property: Instrumentalness
  type: PropertyValue
  value: 0.961
additional property: Liveness
  type: PropertyValue
  value: 0.124
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.225
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.101
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Minor

Piano Sleep
type: MusicRecording
duration: PT1M19S
duration ms: 79500
explicit: false
by artist: Piano Tuo
in album: Sleep
  type: MusicAlbum
  date published: 2023-04-21
isrc code: BCCSO2300053
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T02:35:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d36995e15143fb2e5765a80f7b59062e8793caf194b83c39e226926f805c7a3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956772
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956772
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCCSO2300053
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T10:01:46Z
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 0x3d36995e15143fb2e5765a80f7b59062e8793caf194b83c39e226926f805c7a3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BCCSO2300053.
  date published: 2026-07-05T10:01:46Z
audio: Piano Sleep
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 208.142
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.416
  additional property: Energy
    type: PropertyValue
    value: 0.096
  additional property: Speechiness
    type: PropertyValue
    value: 0.174
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.586
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.546
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.839
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

November Bb
type: MusicAlbum
date published: 2023-05-26

December F
type: MusicAlbum
date published: 2023-06-30

Keys and Wind
type: MusicAlbum
date published: 2025-01-19

Sonate de Lune
type: MusicAlbum
date published: 2025-01-31