Nhạc Ngủ Cho Trẻ Em
type: MusicGroup
popularity: 10
followers: 469
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6c0867cf3a1d1d86d9e08b8be7512ba02ea7f35b6426d0694b07d53f9c2adb0a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953882
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953882
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0a700d9b-0a1d-4511-bae1-ec1cd4017f97.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0a700d9b-0a1d-4511-bae1-ec1cd4017f97.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0a700d9b-0a1d-4511-bae1-ec1cd4017f97
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T03:13:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6c0867cf3a1d1d86d9e08b8be7512ba02ea7f35b6426d0694b07d53f9c2adb0a","name":"Nhạc Ngủ Cho Trẻ Em","registered_at":"2026-06-15T17:13:42Z","symbol":"NIM0776445","token_address":"0xe8c8e0566d512b2be5c68ec98e2403c34d730cda","type":"artist","uuid":"0a700d9b-0a1d-4511-bae1-ec1cd4017f97"}
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 0x6c0867cf3a1d1d86d9e08b8be7512ba02ea7f35b6426d0694b07d53f9c2adb0a. Chain 2 (Bitcoin): anchored in block 953882 (2026-06-16T03:13:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a700d9b-0a1d-4511-bae1-ec1cd4017f97.json and https://artists.proofprofile.net/proofs/artist/0a700d9b-0a1d-4511-bae1-ec1cd4017f97.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T03:13:34Z
  text: {"copyright_id":"0x6c0867cf3a1d1d86d9e08b8be7512ba02ea7f35b6426d0694b07d53f9c2adb0a","name":"Nhạc Ngủ Cho Trẻ Em","registered_at":"2026-06-15T17:13:42Z","symbol":"NIM0776445","token_address":"0xe8c8e0566d512b2be5c68ec98e2403c34d730cda","type":"artist","uuid":"0a700d9b-0a1d-4511-bae1-ec1cd4017f97"}
album: Nhạc Ru Ngủ Dịu Nhẹ Cho Trẻ
  type: MusicAlbum
  date published: 2020
  track: A-Tisket, A-Tasket
    type: MusicRecording
    duration: PT0M30S
    duration ms: 30388
    explicit: false
    by artist: Nhạc Ngủ Cho Trẻ Em
    in album: Nhạc Ru Ngủ Dịu Nhẹ Cho Trẻ
      type: MusicAlbum
      date published: 2020
    isrc code: NLGM12155731
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T22:25:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x015a095993622804496b7fe1c424e9980a73a90ecbf7be3d6c8b0003a372e190
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958792
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958792
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12155731
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T22:55:52Z
    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 0x015a095993622804496b7fe1c424e9980a73a90ecbf7be3d6c8b0003a372e190. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/NLGM12155731 — a six-check JSON result.
      date published: 2026-07-19T22:55:52Z
    audio: A-Tisket, A-Tasket
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 84.49
      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: 0.342
      additional property: Energy
        type: PropertyValue
        value: 0.123
      additional property: Speechiness
        type: PropertyValue
        value: 0.067
      additional property: Acousticness
        type: PropertyValue
        value: 0.995
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.97
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.278
      additional property: Loudness (dB)
        type: PropertyValue
        value: -20.199
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Billy Boy
    type: MusicRecording
    duration: PT0M58S
    duration ms: 58500
    explicit: false
    by artist: Nhạc Ngủ Cho Trẻ Em
    in album: Nhạc Ru Ngủ Dịu Nhẹ Cho Trẻ
      type: MusicAlbum
      date published: 2020
    isrc code: NLGM12155732
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T18:28:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4a569c1a3108686197a6282700ddda8cb28acb22241055995c662b73b6f52441
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956841
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956841
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12155732
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T22:14:35Z
    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 0x4a569c1a3108686197a6282700ddda8cb28acb22241055995c662b73b6f52441. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/NLGM12155732 — a six-check JSON result.
      date published: 2026-07-05T22:14:35Z
    audio: Billy Boy
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.398
      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: 0.476
      additional property: Energy
        type: PropertyValue
        value: 0.218
      additional property: Speechiness
        type: PropertyValue
        value: 0.076
      additional property: Acousticness
        type: PropertyValue
        value: 0.99
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.935
      additional property: Liveness
        type: PropertyValue
        value: 0.117
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.425
      additional property: Loudness (dB)
        type: PropertyValue
        value: -17.07
      additional property: Key Name
      additional property: Mode Name
  track: Grand Old Duke of York
  track: Humpty Dumpty¬†
  track: Little Boy Blue
  track: London Bridge
album: Nhạc Cổ Điển Cho Bé
album: Những Bản Nhạc Piano Cổ Điển
album: Nhạc Năng Lượng Tích Cực
album: Nhạc Cho Bé Ngủ
album: Những Bài Hát Vui Chơi Cho Thiếu Nhi
album: Những Bài Hát Bé Yêu Thích
album: Ngủ Ngon
album: Những Bài Hát & Thơ Ca Thiếu Nhi
album: Nhạc Chữa Lành
album: Đại Dương Êm Ái
album: Những Bài Hát Ru Trong Chiếc Hộp Âm Nhạc
album: Ngủ Sâu Giấc
album: Nhạc Ru Giờ Đi Ngủ
album: Nhạc Thiếu Nhi Thư Giãn
album: Âm Thanh Thiên Nhiên
album: Những Chú Chim Đang Nhảy Múa
album: Five Little Ducks
album: Đến Giờ Thư Giãn
album: Những Chú Chim Đang Hót
album: Tiếng Động Thiên Nhiên Thư Giãn Cho Trẻ
album: Nature Kids
album: Những Chú Chim Non Bé Bỏng
album: Giai Điệu Trẻ Thơ
album: Bãi Biển
album: Tiếng Chim Thư Giãn
album: Thiên Nhiên Thư Giãn
album: Thám Hiểm Rừng Xanh
album: Nhạc Thiếu Nhi Piano
album: Are You Sleeping
album: Eemy Meeny Mini Moe
album: Itsy Bitsy Spider
album: Row Row Row your Boat
album: Happy Birthday
album: Head, Shoulders, Knee And Toes
album: Ba Ba Black Sheep
album: Old Mc Donald Had A Farm
album: London Bridge
album: Humpty Dumpty
album: The Wheels Of The Bus
album: Prelude in C
album: Hồ Thiên Nga
album: Đến Giờ Bé Bo Ngủ
album: Tiếng Chim Thư Giãn Cho Giấc Ngủ Của Bé
album: Nhạc Piano Thiếu Nhi
album: Tiếng Mưa và Sóng Biển Cho Giấc Ngủ Say
album: Nhạc Thiếu Nhi
album: Cân Bằng Cho Bé
album: Nhạc Cho Mẹ Bầu Và Bé
album: Phép Màu Từ Thiên Nhiên
album: Arabesque
album: The little Norwegian Op.140, No.10
album: A Magic Game
album: Douce Plainte - Sweet Sorrow, Op. 100, No. 16
album: Polka
album: Old French Song, Op. 39, No. 16
album: Soldier March
album: Op. 68, No. 8 (The Wild Horseman)
album: In the Garden
album: Sarabande
album: Etude
album: Ballade
album: Musette
album: Siciliano
album: Scherzo in F Major

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Grand Old Duke of York
type: MusicRecording
duration: PT0M52S
duration ms: 52700
explicit: false
by artist: Nhạc Ngủ Cho Trẻ Em
in album: Nhạc Ru Ngủ Dịu Nhẹ Cho Trẻ
  type: MusicAlbum
  date published: 2020
isrc code: NLGM12155733
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-21T20:40:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb7111985b82d37104e48be657ee73b67493e9d3185a715c87f74dc8b6a6e0bb2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959058
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959058
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12155733
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T21:09:36Z
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 0xb7111985b82d37104e48be657ee73b67493e9d3185a715c87f74dc8b6a6e0bb2. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/NLGM12155733 — a six-check JSON result.
  date published: 2026-07-21T21:09:36Z
audio: Grand Old Duke of York
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 85.916
  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: 0.482
  additional property: Energy
    type: PropertyValue
    value: 0.282
  additional property: Speechiness
    type: PropertyValue
    value: 0.26
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.956
  additional property: Liveness
    type: PropertyValue
    value: 0.088
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.845
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.564
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Humpty Dumpty¬†
type: MusicRecording
duration: PT0M44S
duration ms: 44788
explicit: false
by artist: Nhạc Ngủ Cho Trẻ Em
in album: Nhạc Ru Ngủ Dịu Nhẹ Cho Trẻ
  type: MusicAlbum
  date published: 2020
isrc code: NLGM12155734
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T18:49:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x409d6af56899ffaf2500f7e6d75c8303f04c826f7490eb327eac054720a60bef
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956826
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956826
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12155734
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T19:27:56Z
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 0x409d6af56899ffaf2500f7e6d75c8303f04c826f7490eb327eac054720a60bef. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLGM12155734 — a six-check JSON result.
  date published: 2026-07-05T19:27:56Z
audio: Humpty Dumpty¬†
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 170.048
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.326
  additional property: Energy
    type: PropertyValue
    value: 0.148
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.924
  additional property: Liveness
    type: PropertyValue
    value: 0.123
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.653
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.738
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Little Boy Blue
type: MusicRecording
duration: PT1M14S
duration ms: 74322
explicit: false
by artist: Nhạc Ngủ Cho Trẻ Em
in album: Nhạc Ru Ngủ Dịu Nhẹ Cho Trẻ
  type: MusicAlbum
  date published: 2020
isrc code: NLGM12155737
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-21T08:05:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2315c3f8131f0bee020726fc9150b82bd9c566f45a403b3a7fe4a7a4f9064ded
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958985
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958985
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12155737
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T08:39:15Z
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 0x2315c3f8131f0bee020726fc9150b82bd9c566f45a403b3a7fe4a7a4f9064ded. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/NLGM12155737 — a six-check JSON result.
  date published: 2026-07-21T08:39:15Z
audio: Little Boy Blue
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 79.322
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.38
  additional property: Energy
    type: PropertyValue
    value: 0.248
  additional property: Speechiness
    type: PropertyValue
    value: 0.083
  additional property: Acousticness
    type: PropertyValue
    value: 0.996
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.905
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.297
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.904
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

London Bridge
type: MusicRecording
duration: PT0M42S
duration ms: 42580
explicit: false
by artist: Nhạc Ngủ Cho Trẻ Em
in album: Nhạc Ru Ngủ Dịu Nhẹ Cho Trẻ
  type: MusicAlbum
  date published: 2020
isrc code: NLGM12155738
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T20:50:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9363553ccdc29ccb664a29942d3abbff23b3cff0dbf64b5a4daec74a9a442e16
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12155738
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T21:28:36Z
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 0x9363553ccdc29ccb664a29942d3abbff23b3cff0dbf64b5a4daec74a9a442e16. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/NLGM12155738 — a six-check JSON result.
  date published: 2026-07-17T21:28:36Z
audio: London Bridge
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 87.003
  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: 0.361
  additional property: Energy
    type: PropertyValue
    value: 0.161
  additional property: Speechiness
    type: PropertyValue
    value: 0.067
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.96
  additional property: Liveness
    type: PropertyValue
    value: 0.092
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.542
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.721
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Nhạc Cổ Điển Cho Bé
type: MusicAlbum
date published: 2020

Những Bản Nhạc Piano Cổ Điển
type: MusicAlbum
date published: 2020

Nhạc Năng Lượng Tích Cực
type: MusicAlbum
date published: 2020

Nhạc Cho Bé Ngủ
type: MusicAlbum
date published: 2020

Những Bài Hát Vui Chơi Cho Thiếu Nhi
type: MusicAlbum
date published: 2020

Những Bài Hát Bé Yêu Thích
type: MusicAlbum
date published: 2020

Ngủ Ngon
type: MusicAlbum
date published: 2020

Những Bài Hát & Thơ Ca Thiếu Nhi
type: MusicAlbum
date published: 2020

Nhạc Chữa Lành
type: MusicAlbum
date published: 2020

Đại Dương Êm Ái
type: MusicAlbum
date published: 2020

Những Bài Hát Ru Trong Chiếc Hộp Âm Nhạc
type: MusicAlbum
date published: 2020

Ngủ Sâu Giấc
type: MusicAlbum
date published: 2020

Nhạc Ru Giờ Đi Ngủ
type: MusicAlbum
date published: 2020

Nhạc Thiếu Nhi Thư Giãn
type: MusicAlbum
date published: 2020

Âm Thanh Thiên Nhiên
type: MusicAlbum
date published: 2020

Những Chú Chim Đang Nhảy Múa
type: MusicAlbum
date published: 2020

Five Little Ducks
type: MusicAlbum
date published: 2020

Đến Giờ Thư Giãn
type: MusicAlbum
date published: 2020

Những Chú Chim Đang Hót
type: MusicAlbum
date published: 2020

Tiếng Động Thiên Nhiên Thư Giãn Cho Trẻ
type: MusicAlbum
date published: 2020

Nature Kids
type: MusicAlbum
date published: 2020

Những Chú Chim Non Bé Bỏng
type: MusicAlbum
date published: 2020

Giai Điệu Trẻ Thơ
type: MusicAlbum
date published: 2020

Bãi Biển
type: MusicAlbum
date published: 2020

Tiếng Chim Thư Giãn
type: MusicAlbum
date published: 2020

Thiên Nhiên Thư Giãn
type: MusicAlbum
date published: 2020

Thám Hiểm Rừng Xanh
type: MusicAlbum
date published: 2020

Nhạc Thiếu Nhi Piano
type: MusicAlbum
date published: 2020

Are You Sleeping
type: MusicAlbum
date published: 2020

Eemy Meeny Mini Moe
type: MusicAlbum
date published: 2020

Itsy Bitsy Spider
type: MusicAlbum
date published: 2020

Row Row Row your Boat
type: MusicAlbum
date published: 2020

Happy Birthday
type: MusicAlbum
date published: 2020

Head, Shoulders, Knee And Toes
type: MusicAlbum
date published: 2020

Ba Ba Black Sheep
type: MusicAlbum
date published: 2020

Old Mc Donald Had A Farm
type: MusicAlbum
date published: 2020

London Bridge
type: MusicAlbum
date published: 2020

Humpty Dumpty
type: MusicAlbum
date published: 2020

The Wheels Of The Bus
type: MusicAlbum
date published: 2020

Prelude in C
type: MusicAlbum
date published: 2020

Hồ Thiên Nga
type: MusicAlbum
date published: 2020

Đến Giờ Bé Bo Ngủ
type: MusicAlbum
date published: 2021-12-17

Tiếng Chim Thư Giãn Cho Giấc Ngủ Của Bé
type: MusicAlbum
date published: 2021-12-17

Nhạc Piano Thiếu Nhi
type: MusicAlbum
date published: 2021-12-17

Tiếng Mưa và Sóng Biển Cho Giấc Ngủ Say
type: MusicAlbum
date published: 2021-12-17

Nhạc Thiếu Nhi
type: MusicAlbum
date published: 2021-12-17

Cân Bằng Cho Bé
type: MusicAlbum
date published: 2021-12-24

Nhạc Cho Mẹ Bầu Và Bé
type: MusicAlbum
date published: 2021-12-24
track: Templomi Bölcsesség
  type: MusicRecording
  duration: PT1M43S
  duration ms: 103644
  explicit: false
  by artist: Nhạc Ngủ Cho Trẻ Em
  in album: Nhạc Cho Mẹ Bầu Và Bé
    type: MusicAlbum
    date published: 2021-12-24
  isrc code: NLGM12155437
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T14:14:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4c338f959ae960cd20c405a3c60d7695739d7cb6c5b3920e0303950d13ed5b13
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958563
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958563
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12155437
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T14:29:03Z
  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 0x4c338f959ae960cd20c405a3c60d7695739d7cb6c5b3920e0303950d13ed5b13. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/NLGM12155437 — a six-check JSON result.
    date published: 2026-07-18T14:29:03Z
  audio: Templomi Bölcsesség
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 131.455
    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: 0.471
    additional property: Energy
      type: PropertyValue
      value: 0.047
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.982
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.925
    additional property: Liveness
      type: PropertyValue
      value: 0.107
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.52
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.96
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Mini Meditáció
  type: MusicRecording
  duration: PT1M11S
  duration ms: 71071
  explicit: false
  by artist: Nhạc Ngủ Cho Trẻ Em
  in album: Nhạc Cho Mẹ Bầu Và Bé
    type: MusicAlbum
    date published: 2021-12-24
  isrc code: NLGM12155438
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T07:19:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2c6f0c532c81a4bfae72faaa13b6d5cc636446f6317900b88eca685bd1493faf
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958695
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958695
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12155438
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T07:37:00Z
  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 0x2c6f0c532c81a4bfae72faaa13b6d5cc636446f6317900b88eca685bd1493faf. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/NLGM12155438 — a six-check JSON result.
    date published: 2026-07-19T07:37:00Z
  audio: Mini Meditáció
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 92.727
    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: 0.51
    additional property: Energy
      type: PropertyValue
      value: 0.09
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.983
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.972
    additional property: Liveness
      type: PropertyValue
      value: 0.113
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.311
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.648
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Szentlélek
  type: MusicRecording
  duration: PT1M6S
  duration ms: 66524
  explicit: false
  by artist: Nhạc Ngủ Cho Trẻ Em
  in album: Nhạc Cho Mẹ Bầu Và Bé
    type: MusicAlbum
    date published: 2021-12-24
  isrc code: NLGM12155439
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T22:20:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x35fe312189d294d27e1bbe85842bf97c48dbf50761cef1187d09f83ae6a494e9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958621
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958621
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12155439
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Szentlélek
track: Újraegyensúlyozás
track: Visszavonni
track: Energikus Reggeli Aramlás
track: Gyönyörű Kis Esőcsepp
track: Édes Rózsa

OTSTimestamp
type: PropertyValue
value: 2026-07-18T22:59:44Z

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 0x35fe312189d294d27e1bbe85842bf97c48dbf50761cef1187d09f83ae6a494e9. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12155439 — a six-check JSON result.
date published: 2026-07-18T22:59:44Z

Szentlélek
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 88.923
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: 0.393
additional property: Energy
  type: PropertyValue
  value: 0.121
additional property: Speechiness
  type: PropertyValue
  value: 0.034
additional property: Acousticness
  type: PropertyValue
  value: 0.976
additional property: Instrumentalness
  type: PropertyValue
  value: 0.959
additional property: Liveness
  type: PropertyValue
  value: 0.294
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.624
additional property: Loudness (dB)
  type: PropertyValue
  value: -20.869
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

Újraegyensúlyozás
type: MusicRecording
duration: PT1M40S
duration ms: 100652
explicit: false
by artist: Nhạc Ngủ Cho Trẻ Em
in album: Nhạc Cho Mẹ Bầu Và Bé
  type: MusicAlbum
  date published: 2021-12-24
isrc code: NLGM12155440
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T06:23:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1f6c8823384e6cd0c3dea95506617ba2df139e40089a7637b7aec360f9552127
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958510
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958510
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12155440
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T06:38:22Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x1f6c8823384e6cd0c3dea95506617ba2df139e40089a7637b7aec360f9552127. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12155440 — a six-check JSON result.
  date published: 2026-07-18T06:38:22Z
audio: Újraegyensúlyozás
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.682
  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: 0.4
  additional property: Energy
    type: PropertyValue
    value: 0.094
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.811
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.569
  additional property: Liveness
    type: PropertyValue
    value: 0.131
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.33
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.151
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Visszavonni
type: MusicRecording
duration: PT0M50S
duration ms: 50966
explicit: false
by artist: Nhạc Ngủ Cho Trẻ Em
in album: Nhạc Cho Mẹ Bầu Và Bé
  type: MusicAlbum
  date published: 2021-12-24
isrc code: NLGM12155441
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T10:50:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8b760f5dd3135cbabcb6e7ebe9b935e35029a453c0f85839d0866adb0e6cc75a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956711
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956711
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12155441
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-04T22:48:52Z
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 0x8b760f5dd3135cbabcb6e7ebe9b935e35029a453c0f85839d0866adb0e6cc75a. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/NLGM12155441 — a six-check JSON result.
  date published: 2026-07-04T22:48:52Z
audio: Visszavonni
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 93.56
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.554
  additional property: Energy
    type: PropertyValue
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Energikus Reggeli Aramlás
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Gyönyörű Kis Esőcsepp
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Édes Rózsa
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Phép Màu Từ Thiên Nhiên
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date published: 2021-12-31

Arabesque
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The little Norwegian Op.140, No.10
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date published: 2023-03-21

A Magic Game
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date published: 2023-04-07

Douce Plainte - Sweet Sorrow, Op. 100, No. 16
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date published: 2023-04-21

Polka
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date published: 2023-05-07

Old French Song, Op. 39, No. 16
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date published: 2023-05-21

Soldier March
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date published: 2023-06-07

Op. 68, No. 8 (The Wild Horseman)
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In the Garden
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date published: 2023-07-07

Sarabande
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date published: 2023-07-21

Etude
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date published: 2023-08-07

Ballade
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date published: 2023-08-21

Musette
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date published: 2023-09-07

Siciliano
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date published: 2023-09-21

Scherzo in F Major
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date published: 2023-10-07

Happy Farmer
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Menuet
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Op. 68. 16- First Loss
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Little Prelude
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Nhạc Ngủ Cho Trẻ Em
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Chiếc cầu Luân Đôn
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Thư giãn dành cho trẻ em
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Nhạc êm dịu dành cho trẻ em
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Bài hát ru dành cho trẻ em
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Đồng hồ quả lắc
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Đầu Vai Đầu gối và Ngón chân
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Ông McDonald có một nông trại
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Tình yêu lướt qua
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Rock A Bye Baby
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Nếu bạn biết mình đang hạnh phúc
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Năm chú ếch đốm
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Năm chú vịt con
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Ngỗng đực ngổ ngáo
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Ngôi sao nhỏ lấp lánh
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Ngài công tước ở York
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Màu xanh oải hương
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date published: 2024-04-19

Mary có một chú cừu nhỏ
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Jack Horner bé nhỏ
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Jack & Jill
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Humpty Dumpty
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Cậu bé u buồn
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Chúc mừng sinh nhật
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Chèo thuyền
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Bánh xe của xe buýt
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Bác sĩ Foster
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Brahms Lullaby
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Baa, baa, Chú cừu đen
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ABC
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date published: 2024-04-19

Những Bài Hát Ru Ngủ Mexico Dịu Dàng
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