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
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 953697 (2026-06-14T21:49:28Z). 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: 2026-06-14T21:49:28Z
  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

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: 2026-06-13T13:32:09+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
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 953528 (2026-06-13T15:41:10Z), 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: 2026-06-13T15:41:10Z
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