Trúc Mai
type: MusicGroup
genre: bolero
genre: vietnamese bolero
popularity: 14
followers: 794
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x019726a004030b175c605bec20c26338cf94780a7725977750d790d661122bca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc6ae293-bd24-4320-a4b3-9ee17b6a095e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc6ae293-bd24-4320-a4b3-9ee17b6a095e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fc6ae293-bd24-4320-a4b3-9ee17b6a095e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x019726a004030b175c605bec20c26338cf94780a7725977750d790d661122bca","name":"Trúc Mai","registered_at":"2026-06-15T07:00:58Z","symbol":"NIM0718513","token_address":"0x57d66551e3c66216f5f71b4c6f9b7a38ddce6c92","type":"artist","uuid":"fc6ae293-bd24-4320-a4b3-9ee17b6a095e"}
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 0x019726a004030b175c605bec20c26338cf94780a7725977750d790d661122bca. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc6ae293-bd24-4320-a4b3-9ee17b6a095e.json and https://artists.proofprofile.net/proofs/artist/fc6ae293-bd24-4320-a4b3-9ee17b6a095e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0x019726a004030b175c605bec20c26338cf94780a7725977750d790d661122bca","name":"Trúc Mai","registered_at":"2026-06-15T07:00:58Z","symbol":"NIM0718513","token_address":"0x57d66551e3c66216f5f71b4c6f9b7a38ddce6c92","type":"artist","uuid":"fc6ae293-bd24-4320-a4b3-9ee17b6a095e"}
album: Hàn Mặc Tử (Dĩa Hát 761-2106)
  type: MusicAlbum
  date published: 1968-01-01
album: Giá Lạnh
  type: MusicAlbum
  date published: 1971-01-01
album: Xa Cuộc Tình Xưa (1972)
  type: MusicAlbum
  date published: 1972
album: Ước Mộng Không Thành
  type: MusicAlbum
  date published: 1972-01-01
album: Đêm Còn Buồn (1973)
  type: MusicAlbum
  date published: 1973
album: Băng Nhạc Shotguns 34
  type: MusicAlbum
  date published: 1973-01-01
album: Nghe Hạt Mưa Sa
  type: MusicAlbum
  date published: 1973-01-01
album: Những Ngày Xưa Thân Ái
  type: MusicAlbum
  date published: 1983-01-01
album: Liên Khúc Kẻ Nhớ Người Thương
  type: MusicAlbum
  date published: 2020-12-15
album: Sài Gòn
  type: MusicAlbum
  date published: 2021-02-26
  track: Sài Gòn - 1965 [Remastered]
    type: MusicRecording
    duration: PT3M0S
    duration ms: 180440
    explicit: false
    by artist: Trúc Mai
    in album: Sài Gòn
      type: MusicAlbum
      date published: 2021-02-26
    genre: bolero
    genre: vietnamese bolero
    isrc code: DEQ922100001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T02:02:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6b2768912f1bd10d63e1eeb98f5b81cd79b4b95f39dc936150a678f8ccf7076a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958644
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958644
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ922100001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T02:21:25Z
    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 0x6b2768912f1bd10d63e1eeb98f5b81cd79b4b95f39dc936150a678f8ccf7076a. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/DEQ922100001.
      date published: 2026-07-19T02:21:25Z
    audio: Sài Gòn - 1965 [Remastered]
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.793
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.836
      additional property: Energy
        type: PropertyValue
        value: 0.501
      additional property: Speechiness
        type: PropertyValue
        value: 0.087
      additional property: Acousticness
        type: PropertyValue
        value: 0.78
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.079
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.964
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.269
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Sài Gòn - 2021
    type: MusicRecording
    duration: PT3M9S
    duration ms: 189546
    explicit: false
    by artist: Trúc Mai
    in album: Sài Gòn
      type: MusicAlbum
      date published: 2021-02-26
    genre: bolero
    genre: vietnamese bolero
    isrc code: DEQ922100003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T17:37:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x98865a75785b1f891ec2a14577cf019e2247f9a562b86b3d7751a6406d36355f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ922100003
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x98865a75785b1f891ec2a14577cf019e2247f9a562b86b3d7751a6406d36355f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEQ922100003.
      date published: 2026-07-05T01:12:41Z
    audio: Sài Gòn - 2021
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.993
      additional property: Musical Key
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Xuân Nhớ Mẹ

Musical Key
type: PropertyValue
value: 8

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.934

Energy
type: PropertyValue
value: 0.742

Speechiness
type: PropertyValue
value: 0.047

Acousticness
type: PropertyValue
value: 0.302

Instrumentalness
type: PropertyValue
value: 0.008

Liveness
type: PropertyValue
value: 0.08

Valence (Positivity)
type: PropertyValue
value: 0.968

Loudness (dB)
type: PropertyValue
value: -6.4

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

Xuân Nhớ Mẹ
type: MusicAlbum
date published: 2022