Băng Châu
type: MusicGroup
genre: vietnamese bolero
genre: v-pop
popularity: 11
followers: 705
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x97b383a256f01581d40fef98705277feb64b749bb988eb82afde78a8c4677230
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953684
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953684
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/66465695-2cab-4edb-a650-d9aa48d4bdd4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/66465695-2cab-4edb-a650-d9aa48d4bdd4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/66465695-2cab-4edb-a650-d9aa48d4bdd4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:51:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x97b383a256f01581d40fef98705277feb64b749bb988eb82afde78a8c4677230","name":"Băng Châu","registered_at":"2026-06-14T15:14:24Z","symbol":"NIM0492624","token_address":"0x4199bf834697ad2ecfbeee5f8c650bd859bee961","type":"artist","uuid":"66465695-2cab-4edb-a650-d9aa48d4bdd4"}
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 0x97b383a256f01581d40fef98705277feb64b749bb988eb82afde78a8c4677230. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66465695-2cab-4edb-a650-d9aa48d4bdd4.json and https://artists.proofprofile.net/proofs/artist/66465695-2cab-4edb-a650-d9aa48d4bdd4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T19:51:57Z
  text: {"copyright_id":"0x97b383a256f01581d40fef98705277feb64b749bb988eb82afde78a8c4677230","name":"Băng Châu","registered_at":"2026-06-14T15:14:24Z","symbol":"NIM0492624","token_address":"0x4199bf834697ad2ecfbeee5f8c650bd859bee961","type":"artist","uuid":"66465695-2cab-4edb-a650-d9aa48d4bdd4"}
album: Chiều Thương Đô Thị
  type: MusicAlbum
  date published: 1983-01-01
album: Qua Cơn Mê
  type: MusicAlbum
  date published: 1983-01-01
album: Nhớ Nhau Hoài
  type: MusicAlbum
  date published: 1985-01-01
album: Nhớ Nhau Hoài
  type: MusicAlbum
  date published: 1985-01-01
album: Thư Về Em Gái Thành Đô (Remastered)
  type: MusicAlbum
  date published: 1987-01-01
album: Thân Phận (Remastered)
  type: MusicAlbum
  date published: 1987-01-01
album: Tiếng Ca U Hoài (Remastered)
  type: MusicAlbum
  date published: 1988-01-01
album: Tình Yêu Thủy Thủ (Remastered)
  type: MusicAlbum
  date published: 1989-01-01
album: Tình Ca Người Đi Biển (Remastered)
  type: MusicAlbum
  date published: 1989-01-01
album: Gặp Nhau Làm Ngơ
  type: MusicAlbum
  date published: 1989-06-25
album: Gặp Nhau Làm Ngơ
  type: MusicAlbum
  date published: 1989-06-25
album: Nối Lại Tình Xưa
  type: MusicAlbum
  date published: 1992-06-25
album: Sa Mạc Tình Yêu
  type: MusicAlbum
  date published: 2020-01-01
album: Bé Thơ Đi Lễ Chùa (Remastered)
  type: MusicAlbum
  date published: 2024-07-26
album: Đêm Trao Kỷ Niệm (Remastered)
  type: MusicAlbum
  date published: 2024-10-28
track: Sài Gòn đẹp lắm
  type: MusicRecording
  duration: PT3M28S
  duration ms: 208453
  explicit: false
  by artist: Sơn ca
  by artist: Băng Châu
  by artist: Phương Hồng Quế
  in album: Sài Gòn
    type: MusicAlbum
    date published: 2015-01-01
  isrc code: QZGCD1805070
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T20:46:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc3bcc48078857972a7a65dbd98d43c8ce621cbf7fabc0b7db4822a70346725b2
  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/QZGCD1805070
  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 0xc3bcc48078857972a7a65dbd98d43c8ce621cbf7fabc0b7db4822a70346725b2. 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/QZGCD1805070.
    date published: 2026-06-13T13:32:09Z
  audio: Sài Gòn đẹp lắm
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 138.374
    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: 0.757
    additional property: Energy
      type: PropertyValue
      value: 0.764
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.467
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.148
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.843
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.138
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major