Mùa Nhạc Cũ
type: MusicGroup
genre: vietnamese lo-fi
genre: v-pop
popularity: 17
followers: 187
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x6b99eb4b85f2ee6f5f1eae33d4b05d65f506aadd559895b2d481cabee51fe6d3
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://artists.proofprofile.net/proofs/artist/5eb50627-7f81-4613-b034-ed5d74284717.json
additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b99eb4b85f2ee6f5f1eae33d4b05d65f506aadd559895b2d481cabee51fe6d3. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5eb50627-7f81-4613-b034-ed5d74284717.json and https://artists.proofprofile.net/proofs/artist/5eb50627-7f81-4613-b034-ed5d74284717.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:49:28Z
  text: {"copyright_id":"0x6b99eb4b85f2ee6f5f1eae33d4b05d65f506aadd559895b2d481cabee51fe6d3","name":"Mùa Nhạc Cũ","registered_at":"2026-06-14T14:25:59Z","symbol":"NIM0481071","token_address":"0xe6a631ad2dfde73c2a8e9d66435d9e12c4dcf2e1","type":"artist","uuid":"5eb50627-7f81-4613-b034-ed5d74284717"}
album: Thiên Lý Ơi (Lofi Speep Up Version)
  type: MusicAlbum
  date published: 2024-03-05
album: Thiên Lý Ơi - Lofi
  type: MusicAlbum
  date published: 2024-03-05
album: Thứ 9 Ngày 31 Tháng 2 (Lofi Speed Up Version)
  type: MusicAlbum
  date published: 2024-04-19
album: Thứ 9 Ngày 31 Tháng 2 (Lofi)
  type: MusicAlbum
  date published: 2024-04-19
album: Bạn Lòng
  type: MusicAlbum
  date published: 2024-06-22
  track: Bạn Lòng
    type: MusicRecording
    duration: PT4M1S
    duration ms: 241967
    explicit: false
    by artist: Mùa Nhạc Cũ
    in album: Bạn Lòng
      type: MusicAlbum
      date published: 2024-06-22
    genre: vietnamese lo-fi
    genre: v-pop
    isrc code: VNA0F2327767
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T01:06:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xde1f51123ff176c9fda48e777a2d70115cd40bd32bfcaeb5e4379ab22361ac2d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958224
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958224
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2327767
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T02:28:43Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1f51123ff176c9fda48e777a2d70115cd40bd32bfcaeb5e4379ab22361ac2d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2327767.
      date published: 2026-07-16T02:28:43Z
    audio: Bạn Lòng
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.849
      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: 0.582
      additional property: Energy
        type: PropertyValue
        value: 0.271
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.893
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.473
      additional property: Liveness
        type: PropertyValue
        value: 0.124
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.095
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.123
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Có Khi Nào (Lofi)
  type: MusicAlbum
  date published: 2024-08-28
album: Bụi Bay Vào Mắt
  type: MusicAlbum
  date published: 2024-10-26
album: Nước Mắt (Lofi)
  type: MusicAlbum
  date published: 2024-10-28
album: Yêu Không Hối Tiếc (Lofi)
  type: MusicAlbum
  date published: 2024-11-01
album: Tất Cả Sẽ Thay Em (Lofi)
  type: MusicAlbum
  date published: 2024-11-01
album: Thương Nhau Để Đó (Lofi)
  type: MusicAlbum
  date published: 2024-11-01
album: Đừng Mong Anh Sẽ Chúc Em Hạnh Phúc (Lofi)
  type: MusicAlbum
  date published: 2024-11-01
album: Nói Đi Là Đi (Lofi)
  type: MusicAlbum
  date published: 2024-11-01
  track: Nói Đi Là Đi (Lofi)
    type: MusicRecording
    duration: PT4M8S
    duration ms: 248823
    explicit: false
    by artist: Mùa Nhạc Cũ
    in album: Nói Đi Là Đi (Lofi)
      type: MusicAlbum
      date published: 2024-11-01
    genre: vietnamese lo-fi
    genre: v-pop
    isrc code: VNA0F2405204
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T23:39:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd4f881d69b39647bdd5604d96c0764cae7e9c0868daccf66b3821b9740ffe754
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2405204
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T00:27:51Z
    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
    subject of: OpenTimestamps Proof of Existence
    audio: Nói Đi Là Đi (Lofi)
album: Người Đứng Sau Hạnh Phúc (Lofi)
album: Căn Phòng Nước Mắt (Lofi)
album: Chuyện Bây Giờ Đã Muộn (Lofi)
album: Kiếp Đỏ Đen (Lofi)
album: Nói Với Người Đến Sau (Lofi)
album: Nói Em Nghe Mãi Mãi Là Bao Xa (Lofi)
album: Khi Người Đàn Ông Khóc (Lofi)

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f881d69b39647bdd5604d96c0764cae7e9c0868daccf66b3821b9740ffe754. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2405204.
date published: 2026-07-18T00:27:51Z

Nói Đi Là Đi (Lofi)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 136.196
additional property: Musical Key
  type: PropertyValue
  value: 8
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.555
additional property: Energy
  type: PropertyValue
  value: 0.314
additional property: Speechiness
  type: PropertyValue
  value: 0.045
additional property: Acousticness
  type: PropertyValue
  value: 0.845
additional property: Instrumentalness
  type: PropertyValue
  value: 0.001
additional property: Liveness
  type: PropertyValue
  value: 0.143
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.238
additional property: Loudness (dB)
  type: PropertyValue
  value: -12.649
additional property: Key Name
  type: PropertyValue
  value: Ab
additional property: Mode Name
  type: PropertyValue
  value: Major

Người Đứng Sau Hạnh Phúc (Lofi)
type: MusicAlbum
date published: 2024-11-01

Căn Phòng Nước Mắt (Lofi)
type: MusicAlbum
date published: 2024-11-01

Chuyện Bây Giờ Đã Muộn (Lofi)
type: MusicAlbum
date published: 2024-11-01

Kiếp Đỏ Đen (Lofi)
type: MusicAlbum
date published: 2024-11-01

Nói Với Người Đến Sau (Lofi)
type: MusicAlbum
date published: 2024-11-01

Nói Em Nghe Mãi Mãi Là Bao Xa (Lofi)
type: MusicAlbum
date published: 2024-11-01

Khi Người Đàn Ông Khóc (Lofi)
type: MusicAlbum
date published: 2024-11-01