Mầm Chồi Lá
type: MusicGroup
popularity: 29
followers: 1806
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcd9426dfebf8ad8bb11f1fb791ad0a3ced9a0de4f369befa6b164b44fad3d6a2
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/c64a2e14-3520-47c6-bc46-5c8e50fda81d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c64a2e14-3520-47c6-bc46-5c8e50fda81d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c64a2e14-3520-47c6-bc46-5c8e50fda81d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcd9426dfebf8ad8bb11f1fb791ad0a3ced9a0de4f369befa6b164b44fad3d6a2","name":"Mầm Chồi Lá","registered_at":"2026-06-12T09:27:04Z","symbol":"NIM0255907","token_address":"0xd22085abe02509d05915e153b1acda2c904193de","type":"artist","uuid":"c64a2e14-3520-47c6-bc46-5c8e50fda81d"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9426dfebf8ad8bb11f1fb791ad0a3ced9a0de4f369befa6b164b44fad3d6a2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c64a2e14-3520-47c6-bc46-5c8e50fda81d.json and https://artists.proofprofile.net/proofs/artist/c64a2e14-3520-47c6-bc46-5c8e50fda81d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xcd9426dfebf8ad8bb11f1fb791ad0a3ced9a0de4f369befa6b164b44fad3d6a2","name":"Mầm Chồi Lá","registered_at":"2026-06-12T09:27:04Z","symbol":"NIM0255907","token_address":"0xd22085abe02509d05915e153b1acda2c904193de","type":"artist","uuid":"c64a2e14-3520-47c6-bc46-5c8e50fda81d"}
album: Cháu Yêu Bà
  type: MusicAlbum
  date published: 2020-08-08
  track: Ba Bà Đi Bán Lợn Con
    type: MusicRecording
    duration: PT3M3S
    duration ms: 183222
    explicit: false
    by artist: Mầm Chồi Lá
    in album: Cháu Yêu Bà
      type: MusicAlbum
      date published: 2020-08-08
    isrc code: VNR011056889
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T18:58:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x14892db02117ae149566f2a57436788271235c8936367762eb900000dd7407b6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056889
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14892db02117ae149566f2a57436788271235c8936367762eb900000dd7407b6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056889 — a six-check JSON result.
      date published: 2026-07-03T19:59:51Z
    audio: Ba Bà Đi Bán Lợn Con
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.796
      additional property: Energy
        type: PropertyValue
        value: 0.678
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.018
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.897
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.207
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Vì Một Thế Giới Ngày Mai
    type: MusicRecording
    duration: PT3M13S
    duration ms: 193460
    explicit: false
    by artist: Mầm Chồi Lá
    in album: Cháu Yêu Bà
      type: MusicAlbum
      date published: 2020-08-08
    isrc code: VNR011056891
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T21:34:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfb36101abc4b2ab3108f5c81a7afcec77fc60af522565e717141042e0a1a3937
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959063
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959063
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056891
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T21:45:32Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb36101abc4b2ab3108f5c81a7afcec77fc60af522565e717141042e0a1a3937. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056891 — a six-check JSON result.
      date published: 2026-07-21T21:45:32Z
    audio: Vì Một Thế Giới Ngày Mai
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 160.056
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.516
      additional property: Energy
        type: PropertyValue
        value: 0.833
      additional property: Speechiness
        type: PropertyValue
        value: 0.113
      additional property: Acousticness
        type: PropertyValue
        value: 0.039
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.816
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.476
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.217
      additional property: Key Name
      additional property: Mode Name
  track: Bé Khỏe Bé Ngoan
  track: Bé Lật Đật
album: Bé Chút Chít
album: Thật Đáng Chê
album: Con Cò Bé Bé
album: Mùa Xuân Ơi
album: Năm Ngón Tay Ngoan
album: Xúc Xắc Xúc Xẻ
album: Hè Về
album: Mầm Chồi Lá 2022
album: Đếm Màu Con Cá
album: Làm Quen Bạn Mới
album: Thói Quen Tốt Cần Được Giữ Gìn
album: Học Thể Thao Giỏi Như Ba Ba
album: Bài Hát Đố Vui Muôn Loài
album: Thời Gian Chạy Trốn
album: Dọn Rác Cứu Ngay Môi Trường
album: Đêm Halloween
album: Mầm Chồi Lá Dance Tập 7 - Finger Family
album: Mầm Chồi Lá Dance Tập 9 - Bingo Dog Song
album: Mẹ Ơi Tại Sao - Tập 1 - Tại Sao Trời Tối Vào Ban Đêm
album: Mẹ Ơi Tại Sao - Tập 14 - Tại Sao Hoa Có Mùi Thơm
album: Mẹ Ơi Tại Sao - Tập 2 - Tại Sao Biển Lại Mặn
album: Mẹ Ơi Tại Sao - Tập 10 - Tại Sao Lá Cây Màu Xanh
album: Mẹ Ơi Tại Sao - Tập 3 - Những Cơn Mưa Đến Từ Đâu
album: Mẹ Ơi Tại Sao - Tập 4 - Sao Băng Là Gì
album: Mẹ Ơi Tại Sao - Tập 5 - Tại Sao Trên Trời Có Cầu Vồng
album: Mẹ Ơi Tại Sao - Tập 6 - Tại Sao Mặt Trăng Khi Tròn Khi Khuyết
album: Mẹ Ơi Tại Sao - Tập 11 - Tại Sao Chim Có Thể Bay Cao
album: Mẹ Ơi Tại Sao - Tập 12 - Tại Sao Không Nên Đứng Dưới Gốc Cây Khi Sấm Sét
album: Mẹ Ơi Tại Sao - Tập 13 - Tại Sao Không Nên Tưới Cây Giữa Trưa
album: Mẹ Ơi Tại Sao - Tập 9 - Cá Có Ngủ Hay Không
album: Mẹ Ơi Tại Sao - Tập 8 - Tại Sao Bầu Trời Có Màu Xanh
album: Mẹ Ơi Tại Sao - Tập 7 - Trên Trời Có Bao Nhiêu Ngôi Sao
album: Mầm Chồi Lá Dance Tập 1 - Rain Rain Go Away
album: Mầm Chồi Lá Dance Tập 4 - Muffin Man
album: Mầm Chồi Lá Dance Tập 5 - Numbers Song
album: Hickory Dickory Dock
album: Liên Khúc Gia Đình
album: Khúc Nhạc Hồng
album: Joy To The World
album: Itsy Bitsy Teenie Weenie Yellow Polka Dot Bikini
album: Hot Cross Buns
album: Happy New Year
album: Hai Cô Tiên
album: Good Morning
album: Gia Đình Tuyệt Vời
album: Diddle Diddle Dumpling
album: Deck The Halls
album: Chị Thương Em Lắm
album: Chúc Tết
album: Chú Vịt Con
album: Chú Mèo Con
album: Chú Chuột Nhắt
album: Chiếc Xe Nai
album: Búp Bê Bằng Bông
album: Bé Đi Chơi Biển
album: Bé Và Ông Mặt Trời
album: Bài Hát Làm Quen
album: Billy Boy
album: Baby Bumblebee
album: Baa Baa Black Sheep
album: Anh Chị Em
album: ABC
album: Johny Johny Yes Papa
album: Đêm Trung Thu

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Bé Khỏe Bé Ngoan
type: MusicRecording
duration: PT3M46S
duration ms: 226351
explicit: false
by artist: Mầm Chồi Lá
in album: Cháu Yêu Bà
  type: MusicAlbum
  date published: 2020-08-08
isrc code: VNR011056898
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T01:43:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef4b3195aa3472ec26f7d466d09ad9d61fdacd81015010ff77ae49dfa009c10b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956859
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956859
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056898
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:42:12Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4b3195aa3472ec26f7d466d09ad9d61fdacd81015010ff77ae49dfa009c10b. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056898 — a six-check JSON result.
  date published: 2026-07-06T01:42:12Z
audio: Bé Khỏe Bé Ngoan
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.022
  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: 0.76
  additional property: Energy
    type: PropertyValue
    value: 0.815
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.08
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.138
  additional property: Liveness
    type: PropertyValue
    value: 0.114
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.639
  additional property: Loudness (dB)
    type: PropertyValue
    value: -3.605
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bé Lật Đật
type: MusicRecording
duration: PT4M5S
duration ms: 245315
explicit: false
by artist: Mầm Chồi Lá
in album: Cháu Yêu Bà
  type: MusicAlbum
  date published: 2020-08-08
isrc code: VNR011056899
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-02T21:08:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x75eb974c3d38fd1690d1b9c410c9aa2d196f305068b93956a7f46f2484403810
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956402
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956402
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056899
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T22:05:07Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75eb974c3d38fd1690d1b9c410c9aa2d196f305068b93956a7f46f2484403810. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056899 — a six-check JSON result.
  date published: 2026-07-02T22:05:07Z
audio: Bé Lật Đật
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 180.072
  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: 0.662
  additional property: Energy
    type: PropertyValue
    value: 0.676
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.072
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.137
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.812
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.474
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bé Chút Chít
type: MusicAlbum
date published: 2020-08-08

Thật Đáng Chê
type: MusicAlbum
date published: 2020-08-08

Con Cò Bé Bé
type: MusicAlbum
date published: 2020-08-08
track: Con Cò Bé Bé
  type: MusicRecording
  duration: PT4M44S
  duration ms: 284917
  explicit: false
  by artist: Mầm Chồi Lá
  in album: Con Cò Bé Bé
    type: MusicAlbum
    date published: 2020-08-08
  isrc code: VNR011056928
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T23:06:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2660ff1da7eb0a038b808d8d5cc02f3fc678d0613911a55fe8e289e3a3be510e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056928
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2660ff1da7eb0a038b808d8d5cc02f3fc678d0613911a55fe8e289e3a3be510e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056928 — a six-check JSON result.
    date published: 2026-07-04T10:04:33Z
  audio: Con Cò Bé Bé
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.421
    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: 0.45
    additional property: Energy
      type: PropertyValue
      value: 0.604
    additional property: Speechiness
      type: PropertyValue
      value: 0.059
    additional property: Acousticness
      type: PropertyValue
      value: 0.582
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.448
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.46
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.116
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Con Chim Non
  type: MusicRecording
  duration: PT2M20S
  duration ms: 140956
  explicit: false
  by artist: Mầm Chồi Lá
  in album: Con Cò Bé Bé
    type: MusicAlbum
    date published: 2020-08-08
  isrc code: VNR011056929
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T21:04:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa1f4467bf4aba00a5335f9f3fc0291fe815c816cae9fc9517c3365dd68531d0f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958202
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958202
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056929
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T21:23:21Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f4467bf4aba00a5335f9f3fc0291fe815c816cae9fc9517c3365dd68531d0f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056929 — a six-check JSON result.
    date published: 2026-07-15T21:23:21Z
  audio: Con Chim Non
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.081
    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: 0.832
    additional property: Energy
      type: PropertyValue
      value: 0.543
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.399
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.158
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.57
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.463
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Con Cò Bé Bé
type: MusicAlbum
date published: 2020-08-08

Mùa Xuân Ơi
type: MusicAlbum
date published: 2020-08-08

Năm Ngón Tay Ngoan
type: MusicAlbum
date published: 2020-08-08
track: Em Là Hoa Hồng Nhỏ
  type: MusicRecording
  duration: PT2M45S
  duration ms: 165355
  explicit: false
  by artist: Mầm Chồi Lá
  in album: Năm Ngón Tay Ngoan
    type: MusicAlbum
    date published: 2020-08-08
  isrc code: VNR011056908
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T15:36:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb0b7cb0addb10422303d1d2a474c5830010cd3ae8f6e8a09480c33f112d64b2d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958905
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958905
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056908
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T16:14:34Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b7cb0addb10422303d1d2a474c5830010cd3ae8f6e8a09480c33f112d64b2d. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056908 — a six-check JSON result.
    date published: 2026-07-20T16:14:34Z
  audio: Em Là Hoa Hồng Nhỏ
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 85.05
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.667
    additional property: Energy
      type: PropertyValue
      value: 0.755
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.093
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.091
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.76
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.585
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Mời Lên Tàu Lửa
  type: MusicRecording
  duration: PT3M20S
  duration ms: 200306
  explicit: false
  by artist: Mầm Chồi Lá
  in album: Năm Ngón Tay Ngoan
    type: MusicAlbum
    date published: 2020-08-08
  isrc code: VNR011056911
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-14T21:28:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd2de1e6a8fc4d8915d305f0742e2d19b12e3db35d133d3cfba3e015b146bf92c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958069
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958069
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056911
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-14T21:37:55Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2de1e6a8fc4d8915d305f0742e2d19b12e3db35d133d3cfba3e015b146bf92c. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056911 — a six-check JSON result.
    date published: 2026-07-14T21:37:55Z
  audio: Mời Lên Tàu Lửa
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.019
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.775
    additional property: Energy
      type: PropertyValue
      value: 0.88
    additional property: Speechiness
      type: PropertyValue
      value: 0.15
    additional property: Acousticness
      type: PropertyValue
      value: 0.093
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.014
    additional property: Liveness
      type: PropertyValue
      value: 0.306
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.442
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.969
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Năm Ngón Tay Ngoan
  type: MusicRecording
  duration: PT3M14S
  duration ms: 194011
  explicit: false
  by artist: Mầm Chồi Lá
  in album: Năm Ngón Tay Ngoan
    type: MusicAlbum
    date published: 2020-08-08
  isrc code: VNR011056912
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T13:25:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0cb33d1441926d3e6927032f79f226f15066f3f723b0e0cf9b1358c54ffacf94
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958163
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958163
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056912
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Năm Ngón Tay Ngoan
track: Những Em Bé Ngoan
track: Phép Lạ Hằng Ngày

OTSTimestamp
type: PropertyValue
value: 2026-07-15T14:38:07Z

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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb33d1441926d3e6927032f79f226f15066f3f723b0e0cf9b1358c54ffacf94. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056912 — a six-check JSON result.
date published: 2026-07-15T14:38:07Z

Năm Ngón Tay Ngoan
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 100.067
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: 0.836
additional property: Energy
  type: PropertyValue
  value: 0.801
additional property: Speechiness
  type: PropertyValue
  value: 0.035
additional property: Acousticness
  type: PropertyValue
  value: 0.119
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.253
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.875
additional property: Loudness (dB)
  type: PropertyValue
  value: -3.894
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Những Em Bé Ngoan
type: MusicRecording
duration: PT3M4S
duration ms: 184920
explicit: false
by artist: Mầm Chồi Lá
in album: Năm Ngón Tay Ngoan
  type: MusicAlbum
  date published: 2020-08-08
isrc code: VNR011056913
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T13:37:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe36d9cbfbc78928f36e054df44b05f5cfd0b736eb8f20bf99364676c2cb6e6b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956822
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956822
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056913
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T18:48:28Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe36d9cbfbc78928f36e054df44b05f5cfd0b736eb8f20bf99364676c2cb6e6b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056913 — a six-check JSON result.
  date published: 2026-07-05T18:48:28Z
audio: Những Em Bé Ngoan
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 179.936
  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: 0.657
  additional property: Energy
    type: PropertyValue
    value: 0.768
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.06
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.229
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.846
  additional property: Loudness (dB)
    type: PropertyValue
    value: -3.477
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Phép Lạ Hằng Ngày
type: MusicRecording
duration: PT3M19S
duration ms: 199053
explicit: false
by artist: Mầm Chồi Lá
in album: Năm Ngón Tay Ngoan
  type: MusicAlbum
  date published: 2020-08-08
isrc code: VNR011056914
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T22:41:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe493f7f96b08052c3608cc80d92ff3f6663c74c5566f3da5b2b23966b0b5304b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956725
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956725
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056914
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe493f7f96b08052c3608cc80d92ff3f6663c74c5566f3da5b2b23966b0b5304b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056914 — a six-check JSON result.
  date published: 2026-07-05T01:12:41Z
audio: Phép Lạ Hằng Ngày
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.013
  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: 0.927
  additional property: Energy
    type: PropertyValue
    value: 0.729
  additional property: Speechiness
    type: PropertyValue
    value: 0.095
  additional property: Acousticness
    type: PropertyValue
    value: 0.621
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.315
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.749
  additional property: Loudness (dB)
    type: PropertyValue
    value: -5
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Thật Đáng Chê
type: MusicAlbum
date published: 2020-08-08
track: Hai Bàn Tay Em
  type: MusicRecording
  duration: PT3M8S
  duration ms: 188888
  explicit: false
  by artist: Mầm Chồi Lá
  in album: Thật Đáng Chê
    type: MusicAlbum
    date published: 2020-08-08
  isrc code: VNR011056979
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T18:51:55+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc08edf89c300fe6e80cbd7ac17ba06ecb4d6dd50bf38cb393c63011ed74dcc86
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958444
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958444
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056979
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T19:12:23Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08edf89c300fe6e80cbd7ac17ba06ecb4d6dd50bf38cb393c63011ed74dcc86. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056979 — a six-check JSON result.
    date published: 2026-07-17T19:12:23Z
  audio: Hai Bàn Tay Em
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.98
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.742
    additional property: Energy
      type: PropertyValue
      value: 0.941
    additional property: Speechiness
      type: PropertyValue
      value: 0.086
    additional property: Acousticness
      type: PropertyValue
      value: 0.042
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.125
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.767
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.58
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Xúc Xắc Xúc Xẻ
type: MusicAlbum
date published: 2020-08-08
track: Hai Con Thằng Lằn Con
  type: MusicRecording
  duration: PT4M26S
  duration ms: 266475
  explicit: false
  by artist: Mầm Chồi Lá
  in album: Xúc Xắc Xúc Xẻ
    type: MusicAlbum
    date published: 2020-08-08
  isrc code: VNR011056934
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-02T21:07:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2ef3ca01d78863011217c936e7401d5c7ff87294dbfe83a3e80552768ab5950e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956402
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956402
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056934
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T22:05:07Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef3ca01d78863011217c936e7401d5c7ff87294dbfe83a3e80552768ab5950e. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056934 — a six-check JSON result.
    date published: 2026-07-02T22:05:07Z
  audio: Hai Con Thằng Lằn Con
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 150.014
    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: 0.778
    additional property: Energy
      type: PropertyValue
      value: 0.64
    additional property: Speechiness
      type: PropertyValue
      value: 0.101
    additional property: Acousticness
      type: PropertyValue
      value: 0.524
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.386
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.931
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.809
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Nắng Sớm
  type: MusicRecording
  duration: PT3M7S
  duration ms: 187800
  explicit: false
  by artist: Mầm Chồi Lá
  in album: Xúc Xắc Xúc Xẻ
    type: MusicAlbum
    date published: 2020-08-08
  isrc code: VNR011056937
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T23:13:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb9c81773e63e612b75d155c6fd63c687cf9237c26f5156e20dca6dadcbaff042
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056937
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c81773e63e612b75d155c6fd63c687cf9237c26f5156e20dca6dadcbaff042. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056937 — a six-check JSON result.
    date published: 2026-07-04T10:04:33Z
  audio: Nắng Sớm
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.041
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.781
    additional property: Energy
      type: PropertyValue
      value: 0.875
    additional property: Speechiness
      type: PropertyValue
      value: 0.108
    additional property: Acousticness
      type: PropertyValue
      value: 0.116
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.497
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.209
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Tạm Biệt Búp Bê Thân Yêu
  type: MusicRecording
  duration: PT2M53S
  duration ms: 173805
  explicit: false
  by artist: Mầm Chồi Lá
  in album: Xúc Xắc Xúc Xẻ
    type: MusicAlbum
    date published: 2020-08-08
  isrc code: VNR011056939
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T18:30:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfed72cd2ffae0cf6153e917a70df6b7acdc460a0908545ba56e6c5ec77596473
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959043
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959043
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056939
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Tạm Biệt Búp Bê Thân Yêu

OTSTimestamp
type: PropertyValue
value: 2026-07-21T18:40:26Z

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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed72cd2ffae0cf6153e917a70df6b7acdc460a0908545ba56e6c5ec77596473. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011056939 — a six-check JSON result.
date published: 2026-07-21T18:40:26Z

Tạm Biệt Búp Bê Thân Yêu
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 180.124
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.688
additional property: Energy
  type: PropertyValue
  value: 0.786
additional property: Speechiness
  type: PropertyValue
  value: 0.037
additional property: Acousticness
  type: PropertyValue
  value: 0.245
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.359
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.611
additional property: Loudness (dB)
  type: PropertyValue
  value: -4.84
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Minor

Hè Về
type: MusicAlbum
date published: 2022-06-25

Mầm Chồi Lá 2022
type: MusicAlbum
date published: 2022-06-25

Đếm Màu Con Cá
type: MusicAlbum
date published: 2022-07-01

Làm Quen Bạn Mới
type: MusicAlbum
date published: 2022-07-15

Thói Quen Tốt Cần Được Giữ Gìn
type: MusicAlbum
date published: 2022-07-29

Học Thể Thao Giỏi Như Ba Ba
type: MusicAlbum
date published: 2022-08-12

Bài Hát Đố Vui Muôn Loài
type: MusicAlbum
date published: 2022-08-26

Thời Gian Chạy Trốn
type: MusicAlbum
date published: 2022-09-09

Dọn Rác Cứu Ngay Môi Trường
type: MusicAlbum
date published: 2022-11-11

Đêm Halloween
type: MusicAlbum
date published: 2022-11-11

Mầm Chồi Lá Dance Tập 7 - Finger Family
type: MusicAlbum
date published: 2022-12-01

Mầm Chồi Lá Dance Tập 9 - Bingo Dog Song
type: MusicAlbum
date published: 2022-12-01

Mẹ Ơi Tại Sao - Tập 1 - Tại Sao Trời Tối Vào Ban Đêm
type: MusicAlbum
date published: 2022-12-01

Mẹ Ơi Tại Sao - Tập 14 - Tại Sao Hoa Có Mùi Thơm
type: MusicAlbum
date published: 2022-12-01

Mẹ Ơi Tại Sao - Tập 2 - Tại Sao Biển Lại Mặn
type: MusicAlbum
date published: 2022-12-01

Mẹ Ơi Tại Sao - Tập 10 - Tại Sao Lá Cây Màu Xanh
type: MusicAlbum
date published: 2022-12-01

Mẹ Ơi Tại Sao - Tập 3 - Những Cơn Mưa Đến Từ Đâu
type: MusicAlbum
date published: 2022-12-01

Mẹ Ơi Tại Sao - Tập 4 - Sao Băng Là Gì
type: MusicAlbum
date published: 2022-12-01

Mẹ Ơi Tại Sao - Tập 5 - Tại Sao Trên Trời Có Cầu Vồng
type: MusicAlbum
date published: 2022-12-01

Mẹ Ơi Tại Sao - Tập 6 - Tại Sao Mặt Trăng Khi Tròn Khi Khuyết
type: MusicAlbum
date published: 2022-12-01

Mẹ Ơi Tại Sao - Tập 11 - Tại Sao Chim Có Thể Bay Cao
type: MusicAlbum
date published: 2022-12-01

Mẹ Ơi Tại Sao - Tập 12 - Tại Sao Không Nên Đứng Dưới Gốc Cây Khi Sấm Sét
type: MusicAlbum
date published: 2022-12-01

Mẹ Ơi Tại Sao - Tập 13 - Tại Sao Không Nên Tưới Cây Giữa Trưa
type: MusicAlbum
date published: 2022-12-01

Mẹ Ơi Tại Sao - Tập 9 - Cá Có Ngủ Hay Không
type: MusicAlbum
date published: 2022-12-01

Mẹ Ơi Tại Sao - Tập 8 - Tại Sao Bầu Trời Có Màu Xanh
type: MusicAlbum
date published: 2022-12-01

Mẹ Ơi Tại Sao - Tập 7 - Trên Trời Có Bao Nhiêu Ngôi Sao
type: MusicAlbum
date published: 2022-12-01

Mầm Chồi Lá Dance Tập 1 - Rain Rain Go Away
type: MusicAlbum
date published: 2022-12-01

Mầm Chồi Lá Dance Tập 4 - Muffin Man
type: MusicAlbum
date published: 2022-12-01

Mầm Chồi Lá Dance Tập 5 - Numbers Song
type: MusicAlbum
date published: 2022-12-01

Hickory Dickory Dock
type: MusicAlbum
date published: 2022-12-06

Liên Khúc Gia Đình
type: MusicAlbum
date published: 2022-12-08

Khúc Nhạc Hồng
type: MusicAlbum
date published: 2022-12-08

Joy To The World
type: MusicAlbum
date published: 2022-12-08

Itsy Bitsy Teenie Weenie Yellow Polka Dot Bikini
type: MusicAlbum
date published: 2022-12-08

Hot Cross Buns
type: MusicAlbum
date published: 2022-12-08

Hickory Dickory Dock
type: MusicAlbum
date published: 2022-12-08

Happy New Year
type: MusicAlbum
date published: 2022-12-08

Hai Cô Tiên
type: MusicAlbum
date published: 2022-12-08

Good Morning
type: MusicAlbum
date published: 2022-12-08

Gia Đình Tuyệt Vời
type: MusicAlbum
date published: 2022-12-08

Diddle Diddle Dumpling
type: MusicAlbum
date published: 2022-12-08

Deck The Halls
type: MusicAlbum
date published: 2022-12-08

Chị Thương Em Lắm
type: MusicAlbum
date published: 2022-12-08

Chúc Tết
type: MusicAlbum
date published: 2022-12-08

Chú Vịt Con
type: MusicAlbum
date published: 2022-12-08
track: Chú Vịt Con
  type: MusicRecording
  duration: PT2M57S
  duration ms: 177655
  explicit: false
  by artist: Mầm Chồi Lá
  in album: Chú Vịt Con
    type: MusicAlbum
    date published: 2022-12-08
  isrc code: VNR011131781
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T17:50:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xeba8a835dedf4304c92f66036e4c76a9361fb4b473d52eaf38fac9c7f722dc97
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958918
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958918
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011131781
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T17:58:04Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba8a835dedf4304c92f66036e4c76a9361fb4b473d52eaf38fac9c7f722dc97. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011131781 — a six-check JSON result.
    date published: 2026-07-20T17:58:04Z
  audio: Chú Vịt Con
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.12
    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: 0.849
    additional property: Energy
      type: PropertyValue
      value: 0.769
    additional property: Speechiness
      type: PropertyValue
      value: 0.08
    additional property: Acousticness
      type: PropertyValue
      value: 0.138
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.078
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.823
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.527
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Chú Mèo Con
type: MusicAlbum
date published: 2022-12-08

Chú Chuột Nhắt
type: MusicAlbum
date published: 2022-12-08

Chiếc Xe Nai
type: MusicAlbum
date published: 2022-12-08

Búp Bê Bằng Bông
type: MusicAlbum
date published: 2022-12-08

Bé Đi Chơi Biển
type: MusicAlbum
date published: 2022-12-08

Bé Và Ông Mặt Trời
type: MusicAlbum
date published: 2022-12-08

Bài Hát Làm Quen
type: MusicAlbum
date published: 2022-12-08

Billy Boy
type: MusicAlbum
date published: 2022-12-08

Baby Bumblebee
type: MusicAlbum
date published: 2022-12-08

Baa Baa Black Sheep
type: MusicAlbum
date published: 2022-12-08

Anh Chị Em
type: MusicAlbum
date published: 2022-12-08

ABC
type: MusicAlbum
date published: 2022-12-08

Johny Johny Yes Papa
type: MusicAlbum
date published: 2022-12-08

Đêm Trung Thu
type: MusicAlbum
date published: 2022-12-08

Úp Lá Khoai
type: MusicAlbum
date published: 2022-12-08

Ánh Trăng Hòa Bình
type: MusicAlbum
date published: 2022-12-08

Yankee Doodle - Popular Kids Songs
type: MusicAlbum
date published: 2022-12-08

Xuân Họp Mặt
type: MusicAlbum
date published: 2022-12-08

We Wish You A Merry Christmas
type: MusicAlbum
date published: 2022-12-08

Về Quê Cũ
type: MusicAlbum
date published: 2022-12-08

Vầng Trăng Cổ Tích
type: MusicAlbum
date published: 2022-12-08

Tía Má Em
type: MusicAlbum
date published: 2022-12-08

Trời Nắng Trời Mưa
type: MusicAlbum
date published: 2022-12-08

Trái Đất Này Là Của Chúng Mình
type: MusicAlbum
date published: 2022-12-08
track: Trái Đất Này Là Của Chúng Mình
  type: MusicRecording
  duration: PT4M19S
  duration ms: 259118
  explicit: false
  by artist: Mầm Chồi Lá
  in album: Trái Đất Này Là Của Chúng Mình
    type: MusicAlbum
    date published: 2022-12-08
  isrc code: VNR011131764
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T13:18:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb5a993d71c7dbc2f169e18cde1902f2aef02c9dbdd4d59f1957e14410eea7c51
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956822
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956822
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011131764
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T18:48:28Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a993d71c7dbc2f169e18cde1902f2aef02c9dbdd4d59f1957e14410eea7c51. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011131764 — a six-check JSON result.
    date published: 2026-07-05T18:48:28Z
  audio: Trái Đất Này Là Của Chúng Mình
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 125.031
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.69
    additional property: Energy
      type: PropertyValue
      value: 0.705
    additional property: Speechiness
      type: PropertyValue
      value: 0.221
    additional property: Acousticness
      type: PropertyValue
      value: 0.159
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.09
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.267
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.249
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major

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