Lầm Chánh Cường
type: MusicGroup
popularity: 4
followers: 12
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x34f120f2d28dfcf45b07eb9ea6af97901b060af28935e8ec8d09aabf80f027c1
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/e63aac2f-003b-404e-a23d-415ccd828454.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e63aac2f-003b-404e-a23d-415ccd828454.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e63aac2f-003b-404e-a23d-415ccd828454
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x34f120f2d28dfcf45b07eb9ea6af97901b060af28935e8ec8d09aabf80f027c1","name":"Lầm Chánh Cường","registered_at":"2026-06-21T08:27:57Z","symbol":"NIM1874714","token_address":"0x78449c5190e754ff83b4c8bf0bc077c6e52e3ba4","type":"artist","uuid":"e63aac2f-003b-404e-a23d-415ccd828454"}
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 0x34f120f2d28dfcf45b07eb9ea6af97901b060af28935e8ec8d09aabf80f027c1. 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/e63aac2f-003b-404e-a23d-415ccd828454.json and https://artists.proofprofile.net/proofs/artist/e63aac2f-003b-404e-a23d-415ccd828454.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x34f120f2d28dfcf45b07eb9ea6af97901b060af28935e8ec8d09aabf80f027c1","name":"Lầm Chánh Cường","registered_at":"2026-06-21T08:27:57Z","symbol":"NIM1874714","token_address":"0x78449c5190e754ff83b4c8bf0bc077c6e52e3ba4","type":"artist","uuid":"e63aac2f-003b-404e-a23d-415ccd828454"}
album: Lầm Chánh Cường
  type: MusicAlbum
  date published: 2023-08-07
album: Tệ Thật, Anh nhớ em...
  type: MusicAlbum
  date published: 2023-08-10
  track: Tệ Thật, Anh nhớ em...
    type: MusicRecording
    duration: PT2M4S
    duration ms: 124217
    explicit: true
    by artist: Lầm Chánh Cường
    in album: Tệ Thật, Anh nhớ em...
      type: MusicAlbum
      date published: 2023-08-10
    isrc code: QZXLZ2379421
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T12:40:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1a4e2117cb208b1ba48b141ff05f1fecffc1d4080f266990bcdf4d9da1efd77b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZXLZ2379421
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4e2117cb208b1ba48b141ff05f1fecffc1d4080f266990bcdf4d9da1efd77b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZXLZ2379421.
      date published: 2026-07-03T19:59:51Z
    audio: Tệ Thật, Anh nhớ em...
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 106.154
      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: 0.636
      additional property: Energy
        type: PropertyValue
        value: 0.169
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.978
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.822
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.058
      additional property: Loudness (dB)
        type: PropertyValue
        value: -17.363
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Vì Người Không Xứng Đáng
  type: MusicAlbum
  date published: 2023-08-29