KoQuet
type: MusicGroup
genre: indie jazz
genre: vietnam indie
genre: v-pop
popularity: 28
followers: 5592
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78d4a32f87fbeddfec147b734d8b8b7b3ece41fb0556adc5a1493150e1a3611d
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/ce0651ce-932d-44c1-8d36-b977e90d6dd3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce0651ce-932d-44c1-8d36-b977e90d6dd3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ce0651ce-932d-44c1-8d36-b977e90d6dd3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
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 0x78d4a32f87fbeddfec147b734d8b8b7b3ece41fb0556adc5a1493150e1a3611d. 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/ce0651ce-932d-44c1-8d36-b977e90d6dd3.json and https://artists.proofprofile.net/proofs/artist/ce0651ce-932d-44c1-8d36-b977e90d6dd3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: Một Bước Lên Mây
  type: MusicAlbum
  date published: 2021-11-11
album: Trục Đối Xứng
  type: MusicAlbum
  date published: 2021-11-11
album: Trục Đối Xứng
  type: MusicAlbum
  date published: 2021-11-11
album: Cột Mốc Cô Đơn
  type: MusicAlbum
  date published: 2022-01-03
album: Cột Mốc Cô Đơn
  type: MusicAlbum
  date published: 2022-01-03
album: 60° NẮNG
  type: MusicAlbum
  date published: 2022-03-11
album: 60° NẮNG
  type: MusicAlbum
  date published: 2022-03-11
album: Tàu Biển
  type: MusicAlbum
  date published: 2022-04-08
album: Tàu Biển
  type: MusicAlbum
  date published: 2022-04-08
album: Cá Đuối
  type: MusicAlbum
  date published: 2022-05-20
album: Cá Đuối
  type: MusicAlbum
  date published: 2022-05-20
album: Mây Mù
  type: MusicAlbum
  date published: 2022-06-24
album: Mây Mù
  type: MusicAlbum
  date published: 2022-06-24
album: Đôi Giày
  type: MusicAlbum
  date published: 2022-07-22
album: Đôi Giày
  type: MusicAlbum
  date published: 2022-07-22
album: Cao Ốc Trên Con Dốc
  type: MusicAlbum
  date published: 2022-08-26
album: Cao Ốc Trên Con Dốc
  type: MusicAlbum
  date published: 2022-08-26
album: Love Current
  type: MusicAlbum
  date published: 2022-10-14
album: Love Current
  type: MusicAlbum
  date published: 2022-10-14
album: Vòng Xoay
  type: MusicAlbum
  date published: 2022-11-25
album: Vòng Xoay
  type: MusicAlbum
  date published: 2022-11-25
  track: Vòng Xoay
    type: MusicRecording
    duration: PT2M56S
    duration ms: 176385
    explicit: false
    by artist: KoQuet
    in album: Vòng Xoay
      type: MusicAlbum
      date published: 2022-11-25
    genre: indie jazz
    genre: vietnam indie
    genre: v-pop
    isrc code: QMDA72298463
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T14:54:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6a13a845712d9fa52e5174530a67f47a6d9960c329f52982139be7d56cdc5063
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958749
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958749
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72298463
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T17:55:48Z
    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 0x6a13a845712d9fa52e5174530a67f47a6d9960c329f52982139be7d56cdc5063. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:55:48Z), 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/QMDA72298463.
      date published: 2026-07-19T17:55:48Z
    audio: Vòng Xoay
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.001
      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: 0.731
      additional property: Energy
        type: PropertyValue
        value: 0.261
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.943
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.046
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.168
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.187
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Trục Đối Xứng
  type: MusicAlbum
  date published: 2023-01-07
album: Cột Mốc Cô Đơn
  type: MusicAlbum
  date published: 2023-01-07
  track: Cột Mốc Cô Đơn
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217000
    explicit: false
    by artist: KoQuet
    in album: Cột Mốc Cô Đơn
      type: MusicAlbum
      date published: 2023-01-07
    genre: indie jazz
    genre: vietnam indie
    genre: v-pop
    isrc code: QMFMF2119212
    additional property: CopyrightID
    additional property: CopyrightStatus
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Cột Mốc Cô Đơn
album: 60° Nắng
album: Gối Đầu (nhưng chậm hơn)
album: Gối Đầu
album: Nhìn
album: Dường Như
album: Nghe Tiếng Đêm

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-22T04:55:24+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xccc98f54058cbb1e7096d3ded5c0dd3e6fb7fe36b013ae1cb8382dad901dc5a1

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 959105

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/959105

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2119212

OTSTimestamp
type: PropertyValue
value: 2026-07-22T07:56:48Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc98f54058cbb1e7096d3ded5c0dd3e6fb7fe36b013ae1cb8382dad901dc5a1. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:56:48Z), 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/QMFMF2119212.
date published: 2026-07-22T07:56:48Z

Cột Mốc Cô Đơn
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 135.067
additional property: Musical Key
  type: PropertyValue
  value: 5
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.546
additional property: Energy
  type: PropertyValue
  value: 0.287
additional property: Speechiness
  type: PropertyValue
  value: 0.029
additional property: Acousticness
  type: PropertyValue
  value: 0.867
additional property: Instrumentalness
  type: PropertyValue
  value: 0.146
additional property: Liveness
  type: PropertyValue
  value: 0.079
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.431
additional property: Loudness (dB)
  type: PropertyValue
  value: -12.772
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

60° Nắng
type: MusicAlbum
date published: 2023-01-07
track: 60° NẮNG
  type: MusicRecording
  duration: PT4M15S
  duration ms: 255832
  explicit: false
  by artist: KoQuet
  in album: 60° Nắng
    type: MusicAlbum
    date published: 2023-01-07
  genre: indie jazz
  genre: vietnam indie
  genre: v-pop
  isrc code: QM4TX2203110
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T18:29:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2e79ebafe4283a8ef578518f7f0e2b13eed0d1f51ddd1f4a0bc50e09c0172994
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956728
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956728
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2203110
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:43:49Z
  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 0x2e79ebafe4283a8ef578518f7f0e2b13eed0d1f51ddd1f4a0bc50e09c0172994. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QM4TX2203110.
    date published: 2026-07-05T01:43:49Z
  audio: 60° NẮNG
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 156.002
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.542
    additional property: Energy
      type: PropertyValue
      value: 0.521
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.742
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.036
    additional property: Liveness
      type: PropertyValue
      value: 0.097
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.38
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.701
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Vòng Xoay
type: MusicAlbum
date published: 2023-01-07

Tàu Biển
type: MusicAlbum
date published: 2023-01-07

Một Bước Lên Mây
type: MusicAlbum
date published: 2023-01-07

Gối Đầu (nhưng chậm hơn)
type: MusicAlbum
date published: 2023-04-06

Gối Đầu
type: MusicAlbum
date published: 2023-05-08
track: Gối Đầu
  type: MusicRecording
  duration: PT2M53S
  duration ms: 173984
  explicit: false
  by artist: KoQuet
  in album: Gối Đầu
    type: MusicAlbum
    date published: 2023-05-08
  genre: indie jazz
  genre: vietnam indie
  genre: v-pop
  isrc code: FRX452354121
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-12T21:56:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xabf892d558aa7c03087e4b84e26a1fcb5fc1464abe16e4df9d72222ecebad646
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957763
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957763
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452354121
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-12T22:01:25Z
  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 0xabf892d558aa7c03087e4b84e26a1fcb5fc1464abe16e4df9d72222ecebad646. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/FRX452354121.
    date published: 2026-07-12T22:01:25Z
  audio: Gối Đầu
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.896
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.608
    additional property: Energy
      type: PropertyValue
      value: 0.154
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.851
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.14
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.084
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.218
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major

Gối Đầu
type: MusicAlbum
date published: 2023-05-08

Gối Đầu (nhưng chậm hơn)
type: MusicAlbum
date published: 2023-06-04

Nhìn
type: MusicAlbum
date published: 2023-06-23

Nhìn
type: MusicAlbum
date published: 2023-06-23

Nhìn
type: MusicAlbum
date published: 2023-07-27
track: Nhìn
  type: MusicRecording
  duration: PT2M57S
  duration ms: 177777
  explicit: false
  by artist: KoQuet
  in album: Nhìn
    type: MusicAlbum
    date published: 2023-07-27
  genre: indie jazz
  genre: vietnam indie
  genre: v-pop
  isrc code: QM7282351946
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T19:30:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7065368a0019b66c4c6e4672e8d99861f84104a3baf4c6304690b41a8272c1ce
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958316
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958316
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282351946
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T19:42:29Z
  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 0x7065368a0019b66c4c6e4672e8d99861f84104a3baf4c6304690b41a8272c1ce. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QM7282351946.
    date published: 2026-07-16T19:42:29Z
  audio: Nhìn
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.793
    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: 0.649
    additional property: Energy
      type: PropertyValue
      value: 0.287
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.498
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.388
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.284
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.259
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Love Current
type: MusicAlbum
date published: 2023-11-07

Cá Đuối
type: MusicAlbum
date published: 2023-11-07
track: Cá Đuối
  type: MusicRecording
  duration: PT4M3S
  duration ms: 243659
  explicit: false
  by artist: KoQuet
  in album: Cá Đuối
    type: MusicAlbum
    date published: 2023-11-07
  genre: indie jazz
  genre: vietnam indie
  genre: v-pop
  isrc code: QM6MZ2210042
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T17:30:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4375abda827606f7cf51061a2b2237db8882e924d48d2e07e838ab0ed2ff463f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958180
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958180
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2210042
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T20:32:49Z
  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 0x4375abda827606f7cf51061a2b2237db8882e924d48d2e07e838ab0ed2ff463f. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:32:49Z), 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/QM6MZ2210042.
    date published: 2026-07-15T20:32:49Z
  audio: Cá Đuối
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 94.994
    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: 0.601
    additional property: Energy
      type: PropertyValue
      value: 0.415
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.826
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.125
    additional property: Liveness
      type: PropertyValue
      value: 0.109
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.242
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.43
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Đôi Giày
type: MusicAlbum
date published: 2023-11-07

Mây Mù
type: MusicAlbum
date published: 2023-11-07

Dường Như
type: MusicAlbum
date published: 2023-11-21
track: Dường Như
  type: MusicRecording
  duration: PT3M4S
  duration ms: 184000
  explicit: false
  by artist: KoQuet
  in album: Dường Như
    type: MusicAlbum
    date published: 2023-11-21
  genre: indie jazz
  genre: vietnam indie
  genre: v-pop
  isrc code: DGA0P2306218
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T07:02:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2ae5fa17f6622e1fe79993a33d926c9f7b353a7cdd7ca1f9192ca7b1d18d3045
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956639
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956639
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2306218
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T11:19:20Z
  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 0x2ae5fa17f6622e1fe79993a33d926c9f7b353a7cdd7ca1f9192ca7b1d18d3045. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DGA0P2306218.
    date published: 2026-07-04T11:19:20Z
  audio: Dường Như
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.154
    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: 0.627
    additional property: Energy
      type: PropertyValue
      value: 0.268
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.775
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.007
    additional property: Liveness
      type: PropertyValue
      value: 0.163
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.279
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.572
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Dường Như
type: MusicAlbum
date published: 2023-11-21

Cao Ốc Trên Con Dốc
type: MusicAlbum
date published: 2023-12-07
track: Cao Ốc Trên Con Dốc
  type: MusicRecording
  duration: PT4M13S
  duration ms: 253269
  explicit: false
  by artist: KoQuet
  in album: Cao Ốc Trên Con Dốc
    type: MusicAlbum
    date published: 2023-12-07
  genre: indie jazz
  genre: vietnam indie
  genre: v-pop
  isrc code: QMBZ92261630
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T21:42:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xeeb6973f88857cf6d1a5dbf45d50c19d87a27ae692b089e79f2ca31c83b35c41
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956857
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956857
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92261630
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:26:17Z
  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 0xeeb6973f88857cf6d1a5dbf45d50c19d87a27ae692b089e79f2ca31c83b35c41. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QMBZ92261630.
    date published: 2026-07-06T01:26:17Z
  audio: Cao Ốc Trên Con Dốc
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 99.78
    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: 0.465
    additional property: Energy
      type: PropertyValue
      value: 0.216
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.844
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.446
    additional property: Liveness
      type: PropertyValue
      value: 0.392
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.149
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.341
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Nghe Tiếng Đêm
type: MusicAlbum
date published: 2024-02-06
track: Intro Nhắm Mắt
  type: MusicRecording
  duration: PT0M43S
  duration ms: 43624
  explicit: false
  by artist: KoQuet
  in album: Nghe Tiếng Đêm
    type: MusicAlbum
    date published: 2024-02-06
  genre: indie jazz
  genre: vietnam indie
  genre: v-pop
  isrc code: CAHQJ2441314
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T08:20:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9f3d3f6ea48c0fea04a57fbd3e2bf7053d2072c298826cf1af419c48457a8b5a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958991
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958991
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2441314
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T11:23:23Z
  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 0x9f3d3f6ea48c0fea04a57fbd3e2bf7053d2072c298826cf1af419c48457a8b5a. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:23:23Z), 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/CAHQJ2441314.
    date published: 2026-07-21T11:23:23Z
  audio: Intro Nhắm Mắt
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.728
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.477
    additional property: Energy
      type: PropertyValue
      value: 0.386
    additional property: Speechiness
      type: PropertyValue
      value: 0.138
    additional property: Acousticness
      type: PropertyValue
      value: 0.964
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.774
    additional property: Liveness
      type: PropertyValue
      value: 0.131
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.528
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.309
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Khi Mặt Trời Lên
  type: MusicRecording
  duration: PT2M41S
  duration ms: 161812
  explicit: false
  by artist: KoQuet
  in album: Nghe Tiếng Đêm
    type: MusicAlbum
    date published: 2024-02-06
  genre: indie jazz
  genre: vietnam indie
  genre: v-pop
  isrc code: CAHQJ2441329
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T05:16:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0bf4bde8f597589158f561e5525a8ba33cbea21641292b1e7c5a2c93d73064fc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958104
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958104
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2441329
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T05:34:05Z
  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 0x0bf4bde8f597589158f561e5525a8ba33cbea21641292b1e7c5a2c93d73064fc. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/CAHQJ2441329.
    date published: 2026-07-15T05:34:05Z
  audio: Khi Mặt Trời Lên
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 138.087
    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: 0.59
    additional property: Energy
      type: PropertyValue
      value: 0.367
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.227
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.153
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.124
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.279
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Thức Giấc
  type: MusicRecording
  duration: PT2M40S
  duration ms: 160374
  explicit: false
  by artist: KoQuet
  in album: Nghe Tiếng Đêm
    type: MusicAlbum
    date published: 2024-02-06
  genre: indie jazz
  genre: vietnam indie
  genre: v-pop
  isrc code: CAHQJ2441336
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T05:20:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x89633cbf5a95c48e9b3b9f38cfcc852624fe62e855d944ea3a9a50db5e4c0b2d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Thức Giấc
track: Interlude Đi Học
track: Cây Cọ
track: Cuộc Hẹn Trễ
track: Mơ Chẳng Màng
track: Chiều Nay
track: Tan Trong Hư Vô
track: Một Ngày Rưỡi Ngủ Quên
track: Dấu Chấm

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958371

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958371

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2441336

OTSTimestamp
type: PropertyValue
value: 2026-07-17T08:23:54Z

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 0x89633cbf5a95c48e9b3b9f38cfcc852624fe62e855d944ea3a9a50db5e4c0b2d. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:23:54Z), 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/CAHQJ2441336.
date published: 2026-07-17T08:23:54Z

Thức Giấc
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 149.993
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: 0.79
additional property: Energy
  type: PropertyValue
  value: 0.445
additional property: Speechiness
  type: PropertyValue
  value: 0.05
additional property: Acousticness
  type: PropertyValue
  value: 0.304
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.112
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.429
additional property: Loudness (dB)
  type: PropertyValue
  value: -12.467
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Interlude Đi Học
type: MusicRecording
duration: PT0M42S
duration ms: 42374
explicit: false
by artist: KoQuet
in album: Nghe Tiếng Đêm
  type: MusicAlbum
  date published: 2024-02-06
genre: indie jazz
genre: vietnam indie
genre: v-pop
isrc code: CAHQJ2441338
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T01:53:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66561978bd3fc5ced9569f21b5739e5c145f6de0037f2fad370d627c6c190627
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956861
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956861
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2441338
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:57:57Z
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 0x66561978bd3fc5ced9569f21b5739e5c145f6de0037f2fad370d627c6c190627. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/CAHQJ2441338.
  date published: 2026-07-06T01:57:57Z
audio: Interlude Đi Học
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 44.745
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.645
  additional property: Energy
    type: PropertyValue
    value: 0.226
  additional property: Speechiness
    type: PropertyValue
    value: 0.479
  additional property: Acousticness
    type: PropertyValue
    value: 0.644
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.022
  additional property: Liveness
    type: PropertyValue
    value: 0.192
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.453
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.415
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cây Cọ
type: MusicRecording
duration: PT3M20S
duration ms: 200000
explicit: false
by artist: KoQuet
in album: Nghe Tiếng Đêm
  type: MusicAlbum
  date published: 2024-02-06
genre: indie jazz
genre: vietnam indie
genre: v-pop
isrc code: CAHQJ2441340
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T04:52:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x41d75c51618e40590a78fc75b596cbafd80d7fe112763f3ca3dccd42c2fa075f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2441340
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T05:03:25Z
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 0x41d75c51618e40590a78fc75b596cbafd80d7fe112763f3ca3dccd42c2fa075f. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/CAHQJ2441340.
  date published: 2026-07-17T05:03:25Z
audio: Cây Cọ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.085
  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: 0.71
  additional property: Energy
    type: PropertyValue
    value: 0.293
  additional property: Speechiness
    type: PropertyValue
    value: 0.078
  additional property: Acousticness
    type: PropertyValue
    value: 0.848
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.371
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.176
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.642
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cuộc Hẹn Trễ
type: MusicRecording
duration: PT3M13S
duration ms: 193333
explicit: false
by artist: KoQuet
in album: Nghe Tiếng Đêm
  type: MusicAlbum
  date published: 2024-02-06
genre: indie jazz
genre: vietnam indie
genre: v-pop
isrc code: CAHQJ2441343
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-12T21:54:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc922cf9b99088f29a1639e6eb7f535dcf6baef413c41cef4b5d3b5e1cc12d574
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957767
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957767
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2441343
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-12T22:25:13Z
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 0xc922cf9b99088f29a1639e6eb7f535dcf6baef413c41cef4b5d3b5e1cc12d574. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/CAHQJ2441343.
  date published: 2026-07-12T22:25:13Z
audio: Cuộc Hẹn Trễ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 179.595
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.535
  additional property: Energy
    type: PropertyValue
    value: 0.206
  additional property: Speechiness
    type: PropertyValue
    value: 0.107
  additional property: Acousticness
    type: PropertyValue
    value: 0.87
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.16
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.223
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.96
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mơ Chẳng Màng
type: MusicRecording
duration: PT2M4S
duration ms: 124874
explicit: false
by artist: KoQuet
in album: Nghe Tiếng Đêm
  type: MusicAlbum
  date published: 2024-02-06
genre: indie jazz
genre: vietnam indie
genre: v-pop
isrc code: CAHQJ2441349
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T04:53:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe457b0beafc6147e25ef57cd4a2cfe7d59074430b4bae0eff00533b2ae13ca50
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2441349
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T05:03:25Z
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 0xe457b0beafc6147e25ef57cd4a2cfe7d59074430b4bae0eff00533b2ae13ca50. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/CAHQJ2441349.
  date published: 2026-07-17T05:03:25Z
audio: Mơ Chẳng Màng
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 200.504
  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: 0.475
  additional property: Energy
    type: PropertyValue
    value: 0.191
  additional property: Speechiness
    type: PropertyValue
    value: 0.174
  additional property: Acousticness
    type: PropertyValue
    value: 0.864
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.352
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.411
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.523
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Chiều Nay
type: MusicRecording
duration: PT3M4S
duration ms: 184124
explicit: false
by artist: KoQuet
in album: Nghe Tiếng Đêm
  type: MusicAlbum
  date published: 2024-02-06
genre: indie jazz
genre: vietnam indie
genre: v-pop
isrc code: CAHQJ2441360
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-12T22:09:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xffddd3369c566d16a3fff77981e8a5206dfe96da2129c3ad93a27c524d8d0aac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957766
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957766
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2441360
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-12T22:25:04Z
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 0xffddd3369c566d16a3fff77981e8a5206dfe96da2129c3ad93a27c524d8d0aac. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/CAHQJ2441360.
  date published: 2026-07-12T22:25:04Z
audio: Chiều Nay
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.105
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.634
  additional property: Energy
    type: PropertyValue
    value: 0.074
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.937
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.07
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.249
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.298
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tan Trong Hư Vô
type: MusicRecording
duration: PT3M10S
duration ms: 190362
explicit: false
by artist: KoQuet
in album: Nghe Tiếng Đêm
  type: MusicAlbum
  date published: 2024-02-06
genre: indie jazz
genre: vietnam indie
genre: v-pop
isrc code: CAHQJ2441371
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T15:09:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdbfb3139b7dbf45f7e912078a9fd0091551eaf75167d71662bcd4e5e4fe3b9d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958746
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958746
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2441371
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T18:07:06Z
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 0xdbfb3139b7dbf45f7e912078a9fd0091551eaf75167d71662bcd4e5e4fe3b9d1. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:07:06Z), 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/CAHQJ2441371.
  date published: 2026-07-19T18:07:06Z
audio: Tan Trong Hư Vô
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 175.956
  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: 0.663
  additional property: Energy
    type: PropertyValue
    value: 0.521
  additional property: Speechiness
    type: PropertyValue
    value: 0.072
  additional property: Acousticness
    type: PropertyValue
    value: 0.464
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.165
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.273
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.961
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Một Ngày Rưỡi Ngủ Quên
type: MusicRecording
duration: PT3M22S
duration ms: 202000
explicit: false
by artist: KoQuet
in album: Nghe Tiếng Đêm
  type: MusicAlbum
  date published: 2024-02-06
genre: indie jazz
genre: vietnam indie
genre: v-pop
isrc code: CAHQJ2441381
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T11:16:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c40c5f8dafbd042f46d115fef2ce35f986a6f8dede9aef075e08be1899c919f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958152
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958152
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2441381
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T14:10:25Z
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 0x9c40c5f8dafbd042f46d115fef2ce35f986a6f8dede9aef075e08be1899c919f. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:10:25Z), 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/CAHQJ2441381.
  date published: 2026-07-15T14:10:25Z
audio: Một Ngày Rưỡi Ngủ Quên
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 159.934
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.631
  additional property: Energy
    type: PropertyValue
    value: 0.375
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.709
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.644
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.503
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Dấu Chấm
type: MusicRecording
duration: PT3M45S
duration ms: 225500
explicit: false
by artist: KoQuet
in album: Nghe Tiếng Đêm
  type: MusicAlbum
  date published: 2024-02-06
genre: indie jazz
genre: vietnam indie
genre: v-pop
isrc code: CAHQJ2441384
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T15:12:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf10428fa95123d483c1b4007a1ec0451383517b130a7a3ca415214f8c07c8a94
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958169
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958169
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2441384
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T16:16:18Z
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 0xf10428fa95123d483c1b4007a1ec0451383517b130a7a3ca415214f8c07c8a94. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/CAHQJ2441384.
  date published: 2026-07-15T16:16:18Z
audio: Dấu Chấm
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.099
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.608
  additional property: Energy
    type: PropertyValue
    value: 0.183
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.935
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.082
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.162
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.212
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major