Nguyen Van Du
type: MusicGroup
popularity: 17
followers: 146
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x12be5986fea7233b749a73fcb3912d7f8154695f9a25b148238bc0af8967c2e6
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/83a2ddcc-b89c-4f7b-b84d-088222e5a8e6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/83a2ddcc-b89c-4f7b-b84d-088222e5a8e6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/83a2ddcc-b89c-4f7b-b84d-088222e5a8e6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x12be5986fea7233b749a73fcb3912d7f8154695f9a25b148238bc0af8967c2e6","name":"Nguyen Van Du","registered_at":"2026-06-14T18:22:11Z","symbol":"NIM0537395","token_address":"0x030bd4bcbb051acabe0b50f5ef7083dead4981a2","type":"artist","uuid":"83a2ddcc-b89c-4f7b-b84d-088222e5a8e6"}
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 0x12be5986fea7233b749a73fcb3912d7f8154695f9a25b148238bc0af8967c2e6. 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/83a2ddcc-b89c-4f7b-b84d-088222e5a8e6.json and https://artists.proofprofile.net/proofs/artist/83a2ddcc-b89c-4f7b-b84d-088222e5a8e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x12be5986fea7233b749a73fcb3912d7f8154695f9a25b148238bc0af8967c2e6","name":"Nguyen Van Du","registered_at":"2026-06-14T18:22:11Z","symbol":"NIM0537395","token_address":"0x030bd4bcbb051acabe0b50f5ef7083dead4981a2","type":"artist","uuid":"83a2ddcc-b89c-4f7b-b84d-088222e5a8e6"}
album: Harder
  type: MusicAlbum
  date published: 2021-07-16
album: Call Me Love
  type: MusicAlbum
  date published: 2021-10-10
album: Everlasting Love
  type: MusicAlbum
  date published: 2021-11-01
album: Peach Blossom Spring
  type: MusicAlbum
  date published: 2021-11-06
album: Say Something
  type: MusicAlbum
  date published: 2021-11-06
album: Foolish Love
  type: MusicAlbum
  date published: 2021-11-10
album: Everything Matters
  type: MusicAlbum
  date published: 2021-11-10
album: Restless Nights
  type: MusicAlbum
  date published: 2021-11-10
album: Silent Love
  type: MusicAlbum
  date published: 2021-11-10
album: Love and Happiness
  type: MusicAlbum
  date published: 2021-11-13
album: I Love This Life
  type: MusicAlbum
  date published: 2021-11-15
album: HCMT
  type: MusicAlbum
  date published: 2021-11-20
album: All Of My Love
  type: MusicAlbum
  date published: 2021-11-20
album: Closer Tonight
  type: MusicAlbum
  date published: 2021-11-20
album: IGY
  type: MusicAlbum
  date published: 2021-11-20
album: Smoke
  type: MusicAlbum
  date published: 2021-11-20
album: TFU
  type: MusicAlbum
  date published: 2021-11-26
album: Remember Me
  type: MusicAlbum
  date published: 2021-11-27
album: Your Love
  type: MusicAlbum
  date published: 2021-11-28
album: Deeper Love
  type: MusicAlbum
  date published: 2021-11-29
album: Closed Eyes
  type: MusicAlbum
  date published: 2021-11-30
album: Beautiful World
  type: MusicAlbum
  date published: 2022-01-11
album: Spring Lover 2022
  type: MusicAlbum
  date published: 2022-01-13
album: Slowly Down
  type: MusicAlbum
  date published: 2022-01-15
album: Like You
  type: MusicAlbum
  date published: 2022-01-15
album: Can't Be
  type: MusicAlbum
  date published: 2022-01-15
album: Lips
  type: MusicAlbum
  date published: 2022-01-15
album: Find Out
  type: MusicAlbum
  date published: 2022-01-15
album: Vibing Viby
  type: MusicAlbum
  date published: 2022-01-15
album: Cristal Eyes
  type: MusicAlbum
  date published: 2022-01-15
album: Show
  type: MusicAlbum
  date published: 2022-01-15
album: Emobass
  type: MusicAlbum
  date published: 2022-01-15
album: Try It
  type: MusicAlbum
  date published: 2022-01-15
album: Fire
  type: MusicAlbum
  date published: 2022-01-16
album: Drifting
  type: MusicAlbum
  date published: 2022-01-17
album: Light
  type: MusicAlbum
  date published: 2022-01-18
album: Let Me Love You
  type: MusicAlbum
  date published: 2022-01-19
album: Chasing The Dreams
  type: MusicAlbum
  date published: 2022-12-21
album: I'll Say It For You
  type: MusicAlbum
  date published: 2022-12-22
album: Can't Help Falling In Love
  type: MusicAlbum
  date published: 2022-12-22
album: Early In The Morning
  type: MusicAlbum
  date published: 2023-01-13
album: Good Night's Sleep
  type: MusicAlbum
  date published: 2023-02-17
  track: Life Line
    type: MusicRecording
    duration: PT5M39S
    duration ms: 339937
    explicit: false
    by artist: Nguyen Van Du
    in album: Good Night's Sleep
      type: MusicAlbum
      date published: 2023-02-17
    isrc code: US92U1908183
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T03:25:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd8163d202b6810c8d2df051e24926d4909524f4817328206767b2cf7c6232be0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956484
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956484
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US92U1908183
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T10:47:44Z
    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 0xd8163d202b6810c8d2df051e24926d4909524f4817328206767b2cf7c6232be0. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/US92U1908183.
      date published: 2026-07-03T10:47:44Z
    audio: Life Line
album: Cold Coffee For You
album: Peaceful Piano Morning
album: A Good New Day
album: Relax for a new day
album: Hello Birthday Son
album: My Small Island
album: Good Morning Spring
album: Morning Dew and Lotus

Life Line
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 100.677
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.517
additional property: Energy
  type: PropertyValue
  value: 0.007
additional property: Speechiness
  type: PropertyValue
  value: 0.046
additional property: Acousticness
  type: PropertyValue
  value: 0.986
additional property: Instrumentalness
  type: PropertyValue
  value: 0.952
additional property: Liveness
  type: PropertyValue
  value: 0.077
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.258
additional property: Loudness (dB)
  type: PropertyValue
  value: -31.73
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Minor

Cold Coffee For You
type: MusicAlbum
date published: 2023-03-17

Peaceful Piano Morning
type: MusicAlbum
date published: 2023-04-18
track: Happy Now
  type: MusicRecording
  duration: PT5M21S
  duration ms: 321330
  explicit: false
  by artist: Nguyen Van Du
  in album: Peaceful Piano Morning
    type: MusicAlbum
    date published: 2023-04-18
  isrc code: US92U1908882
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-12T21:15:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9de56973fd3c5e7302af15e46e60e667e5a7ef34c456693aabd6dcc86702acff
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957756
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957756
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US92U1908882
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-12T21:36:27Z
  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 0x9de56973fd3c5e7302af15e46e60e667e5a7ef34c456693aabd6dcc86702acff. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/US92U1908882.
    date published: 2026-07-12T21:36:27Z
  audio: Happy Now
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 123.945
    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: 0.753
    additional property: Energy
      type: PropertyValue
      value: 0.026
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.988
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.917
    additional property: Liveness
      type: PropertyValue
      value: 0.13
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.505
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.336
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

A Good New Day
type: MusicAlbum
date published: 2023-09-15

Relax for a new day
type: MusicAlbum
date published: 2023-11-01

Hello Birthday Son
type: MusicAlbum
date published: 2023-12-15

My Small Island
type: MusicAlbum
date published: 2024-01-22
track: Morning Island
  type: MusicRecording
  duration: PT3M53S
  duration ms: 233225
  explicit: false
  by artist: Nguyen Van Du
  in album: My Small Island
    type: MusicAlbum
    date published: 2024-01-22
  isrc code: US92U1910723
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-12T21:12:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6f934421245cbcc1d5b5b34eb981aee0914af6c294c9353929c0906d4047ad1e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957754
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957754
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US92U1910723
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-12T21:26:22Z
  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 0x6f934421245cbcc1d5b5b34eb981aee0914af6c294c9353929c0906d4047ad1e. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/US92U1910723.
    date published: 2026-07-12T21:26:22Z
  audio: Morning Island
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 114.283
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.401
    additional property: Energy
      type: PropertyValue
      value: 0.027
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.991
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.887
    additional property: Liveness
      type: PropertyValue
      value: 0.106
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.04
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.432
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Deep Morning
  type: MusicRecording
  duration: PT3M48S
  duration ms: 228307
  explicit: false
  by artist: Nguyen Van Du
  in album: My Small Island
    type: MusicAlbum
    date published: 2024-01-22
  isrc code: US92U1910729
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T18:07:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf177076646b61e6744ae47dbf29ca0feb2df6629dd55e699ca2f94a08b026210
  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/US92U1910729
  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 0xf177076646b61e6744ae47dbf29ca0feb2df6629dd55e699ca2f94a08b026210. 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/US92U1910729.
    date published: 2026-07-05T01:12:41Z
  audio: Deep Morning
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 121.467
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.226
    additional property: Energy
      type: PropertyValue
      value: 0.018
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.981
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.954
    additional property: Liveness
      type: PropertyValue
      value: 0.095
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.037
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.038
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Good Morning Spring
type: MusicAlbum
date published: 2024-03-07

Morning Dew and Lotus
type: MusicAlbum
date published: 2024-11-06
track: Morning Bliss
  type: MusicRecording
  duration: PT4M3S
  duration ms: 243138
  explicit: false
  by artist: Nguyen Van Du
  in album: Morning Dew and Lotus
    type: MusicAlbum
    date published: 2024-11-06
  isrc code: US92U1913071
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T01:33:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfa3e1bfe74491f370f9ddecb1d5068ddd319034485b1c40617748e8021dbe7f7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958951
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958951
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US92U1913071
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T04:37:33Z
  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 0xfa3e1bfe74491f370f9ddecb1d5068ddd319034485b1c40617748e8021dbe7f7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:37:33Z), 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/US92U1913071.
    date published: 2026-07-21T04:37:33Z
  audio: Morning Bliss
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 120.87
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.454
    additional property: Energy
      type: PropertyValue
      value: 0.013
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.992
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.927
    additional property: Liveness
      type: PropertyValue
      value: 0.093
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.11
    additional property: Loudness (dB)
      type: PropertyValue
      value: -35.581
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Morning Dew and Lotus
  type: MusicRecording
  duration: PT3M55S
  duration ms: 235189
  explicit: false
  by artist: Nguyen Van Du
  in album: Morning Dew and Lotus
    type: MusicAlbum
    date published: 2024-11-06
  isrc code: US92U1913072
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    date published: 2026-07-04T11:19:20Z
  audio: Morning Dew and Lotus
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track: 蓮と朝の調和
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  audio: 蓮と朝の調和

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OTSVerifyInstructions
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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 0xfdc1d12bcb6f83b46d3d06eb5e0197022473ec61827887f8e9274c63d780a01b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US92U1913077.
date published: 2026-07-03T23:28:02Z

蓮と朝の調和
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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