Namchan
type: MusicGroup
genre: vietnamese hip hop
genre: vinahouse
genre: v-pop
popularity: 11
followers: 241
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0352958ec3edb7d473cdd27cc0dd0f0e8d6f7aa509af046cb94c81c75b946a72
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953697
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953697
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/617a4b7b-caa6-4728-8d41-5566d2e3ad6f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/617a4b7b-caa6-4728-8d41-5566d2e3ad6f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/617a4b7b-caa6-4728-8d41-5566d2e3ad6f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:49:28Z
additional property: OTSCanonicalRecord
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 0x0352958ec3edb7d473cdd27cc0dd0f0e8d6f7aa509af046cb94c81c75b946a72. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/617a4b7b-caa6-4728-8d41-5566d2e3ad6f.json and https://artists.proofprofile.net/proofs/artist/617a4b7b-caa6-4728-8d41-5566d2e3ad6f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:00:24Z
album: Nàng Nhớ Chàng Mong
  type: MusicAlbum
  date published: 2021-01-30
album: Nếu Em Ở Lại
  type: MusicAlbum
  date published: 2021-05-30
album: No Eng Thiếu Ng
  type: MusicAlbum
  date published: 2021-12-24
album: No Eng Thiếu Ng
  type: MusicAlbum
  date published: 2021-12-24
album: True Love
  type: MusicAlbum
  date published: 2022-01-16
  track: True Love
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192352
    explicit: false
    by artist: Namchan
    in album: True Love
      type: MusicAlbum
      date published: 2022-01-16
    genre: vietnamese hip hop
    genre: vinahouse
    genre: v-pop
    isrc code: HKK972202007
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T21:26:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf83076e81324e402713f9a7b72d43df556a71321a8fb7bbe04c57bce986ae714
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958329
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958329
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKK972202007
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T21:48:38Z
    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 0xf83076e81324e402713f9a7b72d43df556a71321a8fb7bbe04c57bce986ae714. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/HKK972202007.
      date published: 2026-07-16T21:48:38Z
    audio: True Love
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.255
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.702
      additional property: Energy
        type: PropertyValue
        value: 0.407
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.876
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.387
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.002
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Đặc Ân
  type: MusicAlbum
  date published: 2022-05-15
album: Nếu Như Một Ngày Tôi Có Được Em
  type: MusicAlbum
  date published: 2022-07-20
album: Em Và Thu
  type: MusicAlbum
  date published: 2022-09-19
album: Em Và Thu (Lofi Ver.)
  type: MusicAlbum
  date published: 2022-10-03
album: Em Và Thu (Remix)
  type: MusicAlbum
  date published: 2022-10-03
album: Lời Tỏ Tình Của Anh
  type: MusicAlbum
  date published: 2023-05-03
  track: Lời Tỏ Tình Của Anh
    type: MusicRecording
    duration: PT3M52S
    duration ms: 232909
    explicit: false
    by artist: Namchan
    in album: Lời Tỏ Tình Của Anh
      type: MusicAlbum
      date published: 2023-05-03
    genre: vietnamese hip hop
    genre: vinahouse
    genre: v-pop
    isrc code: VNA2E2312335
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T20:58:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x783b36ce14078d84a53cef28aadf970edab6d46c7e2669d0c3b05b4cc0af590b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958324
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958324
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA2E2312335
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T00:00:02Z
    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 0x783b36ce14078d84a53cef28aadf970edab6d46c7e2669d0c3b05b4cc0af590b. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-17T00:00:02Z), 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/VNA2E2312335.
      date published: 2026-07-17T00:00:02Z
    audio: Lời Tỏ Tình Của Anh
album: Song Phương
album: CHUYẾN YÊU

Lời Tỏ Tình Của Anh
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 112.045
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: 0.747
additional property: Energy
  type: PropertyValue
  value: 0.391
additional property: Speechiness
  type: PropertyValue
  value: 0.031
additional property: Acousticness
  type: PropertyValue
  value: 0.378
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.075
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.365
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.299
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Song Phương
type: MusicAlbum
date published: 2024-01-06

CHUYẾN YÊU
type: MusicAlbum
date published: 2025-05-31