Đức Tư
type: MusicGroup
popularity: 4
followers: 49
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x064e4a9f24097cf1c3c40de471615a6f331448ce1591e2454c18cf2fa50ec1f3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9b366bd-14b4-4da9-9cd2-60235925b3b2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9b366bd-14b4-4da9-9cd2-60235925b3b2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b9b366bd-14b4-4da9-9cd2-60235925b3b2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x064e4a9f24097cf1c3c40de471615a6f331448ce1591e2454c18cf2fa50ec1f3","name":"Đức Tư","registered_at":"2026-06-20T16:03:58Z","symbol":"NIM1652444","token_address":"0x2e65d6b9276e53dc043323bd231af993403d0efa","type":"artist","uuid":"b9b366bd-14b4-4da9-9cd2-60235925b3b2"}
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 0x064e4a9f24097cf1c3c40de471615a6f331448ce1591e2454c18cf2fa50ec1f3. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9b366bd-14b4-4da9-9cd2-60235925b3b2.json and https://artists.proofprofile.net/proofs/artist/b9b366bd-14b4-4da9-9cd2-60235925b3b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0x064e4a9f24097cf1c3c40de471615a6f331448ce1591e2454c18cf2fa50ec1f3","name":"Đức Tư","registered_at":"2026-06-20T16:03:58Z","symbol":"NIM1652444","token_address":"0x2e65d6b9276e53dc043323bd231af993403d0efa","type":"artist","uuid":"b9b366bd-14b4-4da9-9cd2-60235925b3b2"}
album: Em Hát Kế Nhiệm
  type: MusicAlbum
  date published: 2024-10-22
album: Hòa Nhịp Giáng Sinh
  type: MusicAlbum
  date published: 2024-11-03
album: Bích Thượng Quan x Vạn Sự Tùy Duyên Đức Tư Remix
  type: MusicAlbum
  date published: 2024-11-17
  track: Bích Thượng Quan x Vạn Sự Tùy Duyên Đức Tư Remix
    type: MusicRecording
    duration: PT6M23S
    duration ms: 383395
    explicit: false
    by artist: Đức Tư
    in album: Bích Thượng Quan x Vạn Sự Tùy Duyên Đức Tư Remix
      type: MusicAlbum
      date published: 2024-11-17
    isrc code: VNA0F2405869
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T17:29:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x463c9828667b3c11353e8824a91dc4e98c623e066522f374d5105cb9342164fc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958918
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958918
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2405869
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T17:58:04Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463c9828667b3c11353e8824a91dc4e98c623e066522f374d5105cb9342164fc. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/VNA0F2405869.
      date published: 2026-07-20T17:58:04Z
    audio: Bích Thượng Quan x Vạn Sự Tùy Duyên Đức Tư Remix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.008
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.766
      additional property: Energy
        type: PropertyValue
        value: 0.611
      additional property: Speechiness
        type: PropertyValue
        value: 0.076
      additional property: Acousticness
        type: PropertyValue
        value: 0.016
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.736
      additional property: Liveness
        type: PropertyValue
        value: 0.245
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.604
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.756
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor