Mai Xuân Thứ
type: MusicGroup
genre: v-pop
popularity: 15
followers: 93
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe15b153231dff95309c298f721c6ab5228a867fa555cf1768bb1d37a8994273d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4d49a7e7-3235-4014-957a-c6e774b62315.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4d49a7e7-3235-4014-957a-c6e774b62315.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4d49a7e7-3235-4014-957a-c6e774b62315
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe15b153231dff95309c298f721c6ab5228a867fa555cf1768bb1d37a8994273d","name":"Mai Xuân Thứ","registered_at":"2026-06-14T12:35:42Z","symbol":"NIM0454737","token_address":"0x371675b44d9a62ebf2a057cb0d3aed15a2b7870b","type":"artist","uuid":"4d49a7e7-3235-4014-957a-c6e774b62315"}
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 0xe15b153231dff95309c298f721c6ab5228a867fa555cf1768bb1d37a8994273d. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d49a7e7-3235-4014-957a-c6e774b62315.json and https://artists.proofprofile.net/proofs/artist/4d49a7e7-3235-4014-957a-c6e774b62315.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0xe15b153231dff95309c298f721c6ab5228a867fa555cf1768bb1d37a8994273d","name":"Mai Xuân Thứ","registered_at":"2026-06-14T12:35:42Z","symbol":"NIM0454737","token_address":"0x371675b44d9a62ebf2a057cb0d3aed15a2b7870b","type":"artist","uuid":"4d49a7e7-3235-4014-957a-c6e774b62315"}
album: Hai Chữ Yêu Thương Một Chữ Chờ
  type: MusicAlbum
  date published: 2022-04-15
album: Mê Trận Lắm Lối
  type: MusicAlbum
  date published: 2023-06-19
album: Mê Trận Lắm Lối (New Version)
  type: MusicAlbum
  date published: 2023-09-16
album: Người Tình NoEnd
  type: MusicAlbum
  date published: 2023-12-24
album: Từ Giờ
  type: MusicAlbum
  date published: 2024-03-20
album: Tình Yêu Như Demo
  type: MusicAlbum
  date published: 2024-03-28
album: Cùng Nhau Già Đi
  type: MusicAlbum
  date published: 2024-05-05
track: người bán nỗi buồn - Solo Version
  type: MusicRecording
  duration: PT4M12S
  duration ms: 252586
  explicit: false
  by artist: Trung Quân
  by artist: RIN9
  by artist: DREAMeR
  by artist: Mai Xuân Thứ
  in album: người bán nỗi buồn
    type: MusicAlbum
    date published: 2024-07-27
  isrc code: VNA0M1937603
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T19:59:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0df634a57812c549bebf9739b2a7574a5cc8d52314f072f605b3bb4ed1c4f8c3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1937603
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  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 0x0df634a57812c549bebf9739b2a7574a5cc8d52314f072f605b3bb4ed1c4f8c3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/VNA0M1937603.
    date published: 2026-06-13T13:32:09Z
  audio: người bán nỗi buồn - Solo Version
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.95
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.624
    additional property: Energy
      type: PropertyValue
      value: 0.22
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.952
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.166
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.547
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.911
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major