Vĩnh Tâm
type: MusicGroup
genre: traditional music
popularity: 17
followers: 851
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x75d1af2882034c4e22604acd96d3e38ec6580bc1d26797c9300dd17b2a69ac88
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2264a394-3a3f-4d75-8286-5109dd231067.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2264a394-3a3f-4d75-8286-5109dd231067.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2264a394-3a3f-4d75-8286-5109dd231067
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x75d1af2882034c4e22604acd96d3e38ec6580bc1d26797c9300dd17b2a69ac88","name":"Vĩnh Tâm","registered_at":"2026-06-14T07:59:10Z","symbol":"NIM0388797","token_address":"0x955ced49dca82253228aaed712933d37bef8fc00","type":"artist","uuid":"2264a394-3a3f-4d75-8286-5109dd231067"}
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 0x75d1af2882034c4e22604acd96d3e38ec6580bc1d26797c9300dd17b2a69ac88. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2264a394-3a3f-4d75-8286-5109dd231067.json and https://artists.proofprofile.net/proofs/artist/2264a394-3a3f-4d75-8286-5109dd231067.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:37:06Z
  text: {"copyright_id":"0x75d1af2882034c4e22604acd96d3e38ec6580bc1d26797c9300dd17b2a69ac88","name":"Vĩnh Tâm","registered_at":"2026-06-14T07:59:10Z","symbol":"NIM0388797","token_address":"0x955ced49dca82253228aaed712933d37bef8fc00","type":"artist","uuid":"2264a394-3a3f-4d75-8286-5109dd231067"}
album: Giai Điệu Vàng Hà Nội 2
  type: MusicAlbum
  date published: 2008-01-01
album: Nhớ Mưa Sài Gòn (Hòa Tấu Guitar)
  type: MusicAlbum
  date published: 2018-03-01
album: Giáng Ngọc (Hòa Tấu Guitar)
  type: MusicAlbum
  date published: 2018-03-01
album: Lời Buồn Thánh (Hòa Tấu Guitar)
  type: MusicAlbum
  date published: 2018-03-01
album: Giấc Mơ Tuyệt Vời
  type: MusicAlbum
  date published: 2018-07-23
album: Ht- Guitar Vĩnh Tâm 4- Giáng Ngọc
  type: MusicAlbum
  date published: 2018-08-09
  track: Áo Lụa Hà Đông - Instrumental
    type: MusicRecording
    duration: PT4M37S
    duration ms: 277080
    explicit: false
    by artist: Vĩnh Tâm
    in album: Ht- Guitar Vĩnh Tâm 4- Giáng Ngọc
      type: MusicAlbum
      date published: 2018-08-09
    genre: traditional music
    isrc code: VNA0M1826734
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T03:56:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd7e0198057e956235a30aba5e73bfce2db06eed7f4745fe10d294ed43d97e105
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1826734
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e0198057e956235a30aba5e73bfce2db06eed7f4745fe10d294ed43d97e105. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1826734.
      date published: 2026-07-05T10:01:46Z
    audio: Áo Lụa Hà Đông - Instrumental
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.122
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.737
      additional property: Energy
        type: PropertyValue
        value: 0.424
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.552
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.578
      additional property: Liveness
        type: PropertyValue
        value: 0.08
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.585
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.413
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Mắt Biếc - Instrumental
    type: MusicRecording
    duration: PT5M19S
    duration ms: 319111
    explicit: false
    by artist: Vĩnh Tâm
    in album: Ht- Guitar Vĩnh Tâm 4- Giáng Ngọc
      type: MusicAlbum
      date published: 2018-08-09
    genre: traditional music
    isrc code: VNA0M1826738
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T00:42:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7ae497ea232ae0eb819f5d20fd8a5157c14602dd0dc8c83107412384fa25925e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1826738
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0x7ae497ea232ae0eb819f5d20fd8a5157c14602dd0dc8c83107412384fa25925e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/VNA0M1826738.
      date published: 2026-07-06T01:25:57Z
    audio: Mắt Biếc - Instrumental
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 84.046
      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: 0.67
      additional property: Energy
        type: PropertyValue
        value: 0.472
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Bản Tình Cuối - Instrumental
album: Chiều Mưa (Hòa Tấu Guitar)
album: Hòa Tấu Guitar Đời Đá Vàng (Tình Khúc Vũ Thành An)
album: Hòa Tấu Guitar Chuyện Tình Buồn (Những Tình Khúc Phạm Duy)
album: Hòa Tấu Vĩnh Tâm

Speechiness
type: PropertyValue
value: 0.033

Acousticness
type: PropertyValue
value: 0.423

Instrumentalness
type: PropertyValue
value: 0.678

Liveness
type: PropertyValue
value: 0.065

Valence (Positivity)
type: PropertyValue
value: 0.528

Loudness (dB)
type: PropertyValue
value: -8.618

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

Bản Tình Cuối - Instrumental
type: MusicRecording
duration: PT5M16S
duration ms: 316969
explicit: false
by artist: Vĩnh Tâm
in album: Ht- Guitar Vĩnh Tâm 4- Giáng Ngọc
  type: MusicAlbum
  date published: 2018-08-09
genre: traditional music
isrc code: VNA0M1826740
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T17:33:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb6f317e8cb21e6bf9fbdd8c33725b2558cf85341d304db6ab77dacf9372f3d3d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958765
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958765
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1826740
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T20:36:20Z
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 0xb6f317e8cb21e6bf9fbdd8c33725b2558cf85341d304db6ab77dacf9372f3d3d. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:36:20Z), 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/VNA0M1826740.
  date published: 2026-07-19T20:36:20Z
audio: Bản Tình Cuối - Instrumental
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 183.024
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.511
  additional property: Energy
    type: PropertyValue
    value: 0.462
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.312
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.126
  additional property: Liveness
    type: PropertyValue
    value: 0.084
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.519
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.422
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Giáng Ngọc (Hòa Tấu Guitar)
type: MusicAlbum
date published: 2018-08-28

Chiều Mưa (Hòa Tấu Guitar)
type: MusicAlbum
date published: 2021-03-01

Hòa Tấu Guitar Đời Đá Vàng (Tình Khúc Vũ Thành An)
type: MusicAlbum
date published: 2024-04-03

Hòa Tấu Guitar Chuyện Tình Buồn (Những Tình Khúc Phạm Duy)
type: MusicAlbum
date published: 2024-04-03
track: Cây Đàn Bỏ Quên
  type: MusicRecording
  duration: PT5M17S
  duration ms: 317773
  explicit: false
  by artist: Vĩnh Tâm
  in album: Hòa Tấu Guitar Chuyện Tình Buồn (Những Tình Khúc Phạm Duy)
    type: MusicAlbum
    date published: 2024-04-03
  genre: traditional music
  isrc code: VNA0M1934719
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T02:26:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd3a9c840434996ccee95e7c0a9139975354d45cb1ad6c911b47678d1c85408d1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958484
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958484
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1934719
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T03:34:53Z
  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 0xd3a9c840434996ccee95e7c0a9139975354d45cb1ad6c911b47678d1c85408d1. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/VNA0M1934719.
    date published: 2026-07-18T03:34:53Z
  audio: Cây Đàn Bỏ Quên
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 109.979
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.757
    additional property: Energy
      type: PropertyValue
      value: 0.301
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.809
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.791
    additional property: Liveness
      type: PropertyValue
      value: 0.117
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.377
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.226
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Hòa Tấu Vĩnh Tâm
type: MusicAlbum
date published: 2025-06-24