Hồi Ức Music
type: MusicGroup
popularity: 3
followers: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x703a6f49d83e226b5585170489816d803878c0b0b08445314eefd876c62cac74
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ccf68392-4549-49b2-ae0b-700963d586d5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ccf68392-4549-49b2-ae0b-700963d586d5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ccf68392-4549-49b2-ae0b-700963d586d5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x703a6f49d83e226b5585170489816d803878c0b0b08445314eefd876c62cac74","name":"Hồi Ức Music","registered_at":"2026-06-20T23:39:22Z","symbol":"NIM1749963","token_address":"0xdd3709beec5e57805ac1a251bf4159c5b3c7e6be","type":"artist","uuid":"ccf68392-4549-49b2-ae0b-700963d586d5"}
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 0x703a6f49d83e226b5585170489816d803878c0b0b08445314eefd876c62cac74. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ccf68392-4549-49b2-ae0b-700963d586d5.json and https://artists.proofprofile.net/proofs/artist/ccf68392-4549-49b2-ae0b-700963d586d5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x703a6f49d83e226b5585170489816d803878c0b0b08445314eefd876c62cac74","name":"Hồi Ức Music","registered_at":"2026-06-20T23:39:22Z","symbol":"NIM1749963","token_address":"0xdd3709beec5e57805ac1a251bf4159c5b3c7e6be","type":"artist","uuid":"ccf68392-4549-49b2-ae0b-700963d586d5"}
album: Mưa Ướt Lòng Anh Rồi Em Ơi!
  type: MusicAlbum
  date published: 2025-10-01
album: Vạn Lý Sầu Ngàn Trùng Nhân Ảnh
  type: MusicAlbum
  date published: 2025-10-02
album: Mảnh Tình Sai Đôi 2
  type: MusicAlbum
  date published: 2025-10-06
album: Mưa Chiều (Blues Rock)
  type: MusicAlbum
  date published: 2025-10-12
album: Linh Hồn Tượng Đá (Blues Rock)
  type: MusicAlbum
  date published: 2025-10-14
album: Xa Em Kỷ Niệm (Blues Rock)
  type: MusicAlbum
  date published: 2025-10-14
album: Diễm Xưa (Blues Rock)
  type: MusicAlbum
  date published: 2025-10-16
album: Tình Nồng (Blues Rock)
  type: MusicAlbum
  date published: 2025-10-17
album: Tháng Mười Anh Viết Cho Em
  type: MusicAlbum
  date published: 2025-10-18
album: Ánh Trăng Nói Hộ Lòng Tôi (Blues Rock)
  type: MusicAlbum
  date published: 2025-10-20
  track: Ánh Trăng Nói Hộ Lòng Tôi (Blues Rock)
    type: MusicRecording
    duration: PT4M24S
    duration ms: 264919
    explicit: false
    by artist: Hồi Ức Music
    in album: Ánh Trăng Nói Hộ Lòng Tôi (Blues Rock)
      type: MusicAlbum
      date published: 2025-10-20
    isrc code: QT3FG2598064
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T03:20:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4d273de6e6f031af52d9958cd536967e8d6b128d2b62ab4106ec1731ef42f809
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956656
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956656
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3FG2598064
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T14:03:39Z
    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 0x4d273de6e6f031af52d9958cd536967e8d6b128d2b62ab4106ec1731ef42f809. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QT3FG2598064.
      date published: 2026-07-04T14:03:39Z
    audio: Ánh Trăng Nói Hộ Lòng Tôi (Blues Rock)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 173.306
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.491
      additional property: Energy
        type: PropertyValue
        value: 0.423
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.435
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.478
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.325
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Hạ Trắng (Blues Rock)
  type: MusicAlbum
  date published: 2025-10-21
  track: Hạ Trắng (Blues Rock)
    type: MusicRecording
    duration: PT4M19S
    duration ms: 259919
    explicit: false
    by artist: Hồi Ức Music
    in album: Hạ Trắng (Blues Rock)
      type: MusicAlbum
      date published: 2025-10-21
    isrc code: QT3FH2565752
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T06:44:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xec16c6881f2791235b8fbee5b9b038519d55764887623439580886bd4d809c7f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958256
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958256
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3FH2565752
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T07:22:18Z
    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 0xec16c6881f2791235b8fbee5b9b038519d55764887623439580886bd4d809c7f. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QT3FH2565752.
      date published: 2026-07-16T07:22:18Z
    audio: Hạ Trắng (Blues Rock)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 167.476
      additional property: Musical Key
        type: PropertyValue
        value: 4
      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: Vì Một Người Ra Đi (Rock Ballad)
album: Xin Còn Gọi Tên Nhau (Blues Rock)
album: Kiếp Này Chưa Kịp Quên
album: Tương Tư Nàng Ca Sĩ (Rock Ballad)
album: Vùng Lá Me Bay (Blues Rock)
album: Hãy Thắp Ánh Sáng (Đổi Thay) (Rock Ballad)
album: Con Đường Chúng Ta Đi (Tây Du Ký) (Rock Ballad)
album: Cô Gái Mở Đường (Blues Rock)
album: Đắng Cay (Rock Metal)
album: Thu Sầu (Pop Rock)
album: Một Ngày Mùa Đông (Pop Rock)
album: Anh Say Đêm Nay (Rock Ballad)

Mode (Major/Minor)
type: PropertyValue
value: 0

Time Signature
type: PropertyValue
value: 3

Danceability
type: PropertyValue
value: 0.463

Energy
type: PropertyValue
value: 0.533

Speechiness
type: PropertyValue
value: 0.037

Acousticness
type: PropertyValue
value: 0.31

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.408

Valence (Positivity)
type: PropertyValue
value: 0.379

Loudness (dB)
type: PropertyValue
value: -9.481

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor

Vì Một Người Ra Đi (Rock Ballad)
type: MusicAlbum
date published: 2025-10-22

Xin Còn Gọi Tên Nhau (Blues Rock)
type: MusicAlbum
date published: 2025-10-24

Kiếp Này Chưa Kịp Quên
type: MusicAlbum
date published: 2025-10-25

Tương Tư Nàng Ca Sĩ (Rock Ballad)
type: MusicAlbum
date published: 2025-10-28
track: Tương Tư Nàng Ca Sĩ (Rock Ballad)
  type: MusicRecording
  duration: PT4M28S
  duration ms: 268839
  explicit: false
  by artist: Hồi Ức Music
  in album: Tương Tư Nàng Ca Sĩ (Rock Ballad)
    type: MusicAlbum
    date published: 2025-10-28
  isrc code: QT6E82563985
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T00:19:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc5ee0b0c5e0fe8252bc0e38daf5e033a3a2b8eeb5bd9f9c141848bb8c7192842
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956856
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956856
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT6E82563985
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:25:57Z
  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 0xc5ee0b0c5e0fe8252bc0e38daf5e033a3a2b8eeb5bd9f9c141848bb8c7192842. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QT6E82563985.
    date published: 2026-07-06T01:25:57Z
  audio: Tương Tư Nàng Ca Sĩ (Rock Ballad)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 168.282
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.422
    additional property: Energy
      type: PropertyValue
      value: 0.559
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.353
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.161
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.239
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.972
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Vùng Lá Me Bay (Blues Rock)
type: MusicAlbum
date published: 2025-10-28

Hãy Thắp Ánh Sáng (Đổi Thay) (Rock Ballad)
type: MusicAlbum
date published: 2025-10-30

Con Đường Chúng Ta Đi (Tây Du Ký) (Rock Ballad)
type: MusicAlbum
date published: 2025-10-31

Cô Gái Mở Đường (Blues Rock)
type: MusicAlbum
date published: 2025-11-01

Đắng Cay (Rock Metal)
type: MusicAlbum
date published: 2025-11-04
track: Đắng Cay (Rock Metal)
  type: MusicRecording
  duration: PT4M56S
  duration ms: 296599
  explicit: false
  by artist: Hồi Ức Music
  in album: Đắng Cay (Rock Metal)
    type: MusicAlbum
    date published: 2025-11-04
  isrc code: QT6ED2559997
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T18:59:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8490cc710e3a0660f5f4770be8dfe22a6ac65fab3b1aef48747d349cd480ebfb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958601
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958601
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT6ED2559997
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T19:27:02Z
  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 0x8490cc710e3a0660f5f4770be8dfe22a6ac65fab3b1aef48747d349cd480ebfb. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QT6ED2559997.
    date published: 2026-07-18T19:27:02Z
  audio: Đắng Cay (Rock Metal)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.167
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.558
    additional property: Energy
      type: PropertyValue
      value: 0.632
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.152
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.127
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.283
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.001
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Thu Sầu (Pop Rock)
type: MusicAlbum
date published: 2025-11-11

Một Ngày Mùa Đông (Pop Rock)
type: MusicAlbum
date published: 2025-11-12

Anh Say Đêm Nay (Rock Ballad)
type: MusicAlbum
date published: 2025-11-14