A Tổ
type: MusicGroup
genre: vietnamese bolero
genre: vinahouse
genre: v-pop
popularity: 25
followers: 524
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x82222e21be9730684fd036b487e53598b021d11467ad0dd79ff83c2772541230
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6367d0b9-1950-4a5c-8875-9540232a9bb2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6367d0b9-1950-4a5c-8875-9540232a9bb2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6367d0b9-1950-4a5c-8875-9540232a9bb2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x82222e21be9730684fd036b487e53598b021d11467ad0dd79ff83c2772541230","name":"A Tổ","registered_at":"2026-06-11T22:56:07Z","symbol":"NIM0128704","token_address":"0x7a5702e3e00fac7b7e109afe7a0ee8c2cf56d748","type":"artist","uuid":"6367d0b9-1950-4a5c-8875-9540232a9bb2"}
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 0x82222e21be9730684fd036b487e53598b021d11467ad0dd79ff83c2772541230. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6367d0b9-1950-4a5c-8875-9540232a9bb2.json and https://artists.proofprofile.net/proofs/artist/6367d0b9-1950-4a5c-8875-9540232a9bb2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x82222e21be9730684fd036b487e53598b021d11467ad0dd79ff83c2772541230","name":"A Tổ","registered_at":"2026-06-11T22:56:07Z","symbol":"NIM0128704","token_address":"0x7a5702e3e00fac7b7e109afe7a0ee8c2cf56d748","type":"artist","uuid":"6367d0b9-1950-4a5c-8875-9540232a9bb2"}
album: Ký Ức Nhạt Màu
  type: MusicAlbum
  date published: 2022-03-11
album: Đứa Con Hư
  type: MusicAlbum
  date published: 2022-12-09
album: YÊU QUÁ VÌ QUÁ YÊU
  type: MusicAlbum
  date published: 2024-04-14
album: Yêu Quá Vì Quá Yêu (Rumbahouse)
  type: MusicAlbum
  date published: 2024-04-26
album: Tiền Đâu Phải Tất Cả
  type: MusicAlbum
  date published: 2024-04-30
album: Yêu Quá Vì Quá Yêu (Remix)
  type: MusicAlbum
  date published: 2024-04-30
album: Tất Cả Là Vì Tiền
  type: MusicAlbum
  date published: 2024-06-13
album: Tình Dở Dang (Parody)
  type: MusicAlbum
  date published: 2024-06-13
album: Tìm Về Miền Ký Ức
  type: MusicAlbum
  date published: 2024-06-13
album: Trò Chơi Thế Thân
  type: MusicAlbum
  date published: 2024-06-13
album: Cay Đắng Cuộc Tình
  type: MusicAlbum
  date published: 2024-06-13
album: Bởi Vì Chữ Tiền
  type: MusicAlbum
  date published: 2024-06-13
album: Vì Tiền Bỏ Bạn
  type: MusicAlbum
  date published: 2024-06-13
album: Đứa Con Hư
  type: MusicAlbum
  date published: 2024-06-14
album: Ký Ức Nhạt Màu
  type: MusicAlbum
  date published: 2024-06-14
  track: Ký Ức Nhạt Màu - Remix 2024
    type: MusicRecording
    duration: PT5M2S
    duration ms: 302210
    explicit: false
    by artist: A Tổ
    in album: Ký Ức Nhạt Màu
      type: MusicAlbum
      date published: 2024-06-14
    genre: vietnamese bolero
    genre: vinahouse
    genre: v-pop
    isrc code: DGA062408142
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T06:47:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9492d5b8c6b3c95f0729cfc6bc40131835545128502cc7b2a9bfd17cbb8b885e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA062408142
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x9492d5b8c6b3c95f0729cfc6bc40131835545128502cc7b2a9bfd17cbb8b885e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DGA062408142.
      date published: 2026-07-04T10:04:33Z
    audio: Ký Ức Nhạt Màu - Remix 2024
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.991
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.621
      additional property: Energy
        type: PropertyValue
        value: 0.879
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.595
      additional property: Liveness
        type: PropertyValue
        value: 0.423
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.705
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.613
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Ký Ức Nhạt Màu
  type: MusicAlbum
  date published: 2024-06-17
album: Đứa Con Hư
  type: MusicAlbum
  date published: 2024-06-17
  track: Đứa Con Hư
    type: MusicRecording
    duration: PT5M37S
    duration ms: 337475
    explicit: false
    by artist: A Tổ
    in album: Đứa Con Hư
      type: MusicAlbum
      date published: 2024-06-17
    genre: vietnamese bolero
    genre: vinahouse
    genre: v-pop
    isrc code: QMFME2294555
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T00:58:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x530e195f4ea247f4b70fafbe7f1574d82591423f73426b029a46f76f1b8d66b4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Đứa Con Hư
album: Men Say Tình Cũ
album: Vạt Áo Người Dưng
album: Tình Đẹp Đến Mấy Cũng Thua Đồng Tiền
album: Tình Đẹp Đến Mấy Cũng Thua Đồng Tiền (Beat)

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956634

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956634

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2294555

OTSTimestamp
type: PropertyValue
value: 2026-07-04T10:04:33Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530e195f4ea247f4b70fafbe7f1574d82591423f73426b029a46f76f1b8d66b4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMFME2294555.
date published: 2026-07-04T10:04:33Z

Đứa Con Hư
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 111.97
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.657
additional property: Energy
  type: PropertyValue
  value: 0.334
additional property: Speechiness
  type: PropertyValue
  value: 0.03
additional property: Acousticness
  type: PropertyValue
  value: 0.892
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.241
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.246
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.007
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Minor

Men Say Tình Cũ
type: MusicAlbum
date published: 2024-07-29

Vạt Áo Người Dưng
type: MusicAlbum
date published: 2025-05-27

Tình Đẹp Đến Mấy Cũng Thua Đồng Tiền
type: MusicAlbum
date published: 2025-08-05

Tình Đẹp Đến Mấy Cũng Thua Đồng Tiền (Beat)
type: MusicAlbum
date published: 2025-09-24