Hạnh An
type: MusicGroup
genre: bolero
popularity: 7
followers: 21
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x86b3be3fc25ae61cbe29b514cf68c91c2b96cff940aea2f0583ebd275c8e1772
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea36b36e-60d4-44b9-afd5-664709decafe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea36b36e-60d4-44b9-afd5-664709decafe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ea36b36e-60d4-44b9-afd5-664709decafe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x86b3be3fc25ae61cbe29b514cf68c91c2b96cff940aea2f0583ebd275c8e1772","name":"Hạnh An","registered_at":"2026-06-21T10:27:21Z","symbol":"NIM1898351","token_address":"0x9dd351e5e3ca4534a479df5b035ca5f328a84de3","type":"artist","uuid":"ea36b36e-60d4-44b9-afd5-664709decafe"}
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 0x86b3be3fc25ae61cbe29b514cf68c91c2b96cff940aea2f0583ebd275c8e1772. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea36b36e-60d4-44b9-afd5-664709decafe.json and https://artists.proofprofile.net/proofs/artist/ea36b36e-60d4-44b9-afd5-664709decafe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x86b3be3fc25ae61cbe29b514cf68c91c2b96cff940aea2f0583ebd275c8e1772","name":"Hạnh An","registered_at":"2026-06-21T10:27:21Z","symbol":"NIM1898351","token_address":"0x9dd351e5e3ca4534a479df5b035ca5f328a84de3","type":"artist","uuid":"ea36b36e-60d4-44b9-afd5-664709decafe"}
album: Tuyển Tập Nhạc Trữ Tình Bolero Hạnh An
  type: MusicAlbum
  date published: 2024-10-26
album: Một Thuở Yêu Người
  type: MusicAlbum
  date published: 2024-11-19
album: Cơn Sầu Dĩ Vãng
  type: MusicAlbum
  date published: 2024-11-19
album: Tình Nồng
  type: MusicAlbum
  date published: 2024-11-23
album: Mẹ Yêu Con
  type: MusicAlbum
  date published: 2024-12-25
album: Trên Đỉnh Mùa Đông
  type: MusicAlbum
  date published: 2024-12-28
album: Tâm Tình Đầu Xuân
  type: MusicAlbum
  date published: 2025-01-18
  track: Tâm Tình Đầu Xuân
    type: MusicRecording
    duration: PT4M23S
    duration ms: 263666
    explicit: false
    by artist: Hạnh An
    in album: Tâm Tình Đầu Xuân
      type: MusicAlbum
      date published: 2025-01-18
    genre: bolero
    isrc code: VNA0F2409343
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T22:02:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x30d5c7b69aa394d50091cbb69df571748f7305d921e649e144b79f47f88f83cd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957766
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957766
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2409343
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T22:25:04Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x30d5c7b69aa394d50091cbb69df571748f7305d921e649e144b79f47f88f83cd. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2409343.
      date published: 2026-07-12T22:25:04Z
    audio: Tâm Tình Đầu Xuân
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 143.867
      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: 0.533
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.591
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.205
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.441
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.129
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Đám Cưới Đầu Xuân
  type: MusicAlbum
  date published: 2025-01-27
album: Ngày Xuân Tái Ngộ
  type: MusicAlbum
  date published: 2025-01-27
album: Xuân Này Con Không Về
  type: MusicAlbum
  date published: 2025-01-27
album: Ước Nguyện Đầu Xuân
  type: MusicAlbum
  date published: 2025-02-08
album: Chờ Người
  type: MusicAlbum
  date published: 2025-02-22
album: Dư Âm
  type: MusicAlbum
  date published: 2025-03-05
album: Tìm Em Câu Ví Sông Lam
  type: MusicAlbum
  date published: 2025-03-22
album: Em Mần Du Xứ Nghệ
  type: MusicAlbum
  date published: 2025-03-30
album: Em Là Cô Gái Anh Thương
  type: MusicAlbum
  date published: 2025-04-02
album: Tuyển Tập Nhạc Dân Ca Hạnh An
  type: MusicAlbum
  date published: 2025-05-25