Hoài Nam
type: MusicGroup
genre: bolero
genre: vietnamese bolero
popularity: 8
followers: 768
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c26ed02b5de164940cd67649834b62d2030c8e84ce63407fcab132ac2c41695
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/949a6c6b-d453-44e7-a062-2edfbf966cbd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/949a6c6b-d453-44e7-a062-2edfbf966cbd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/949a6c6b-d453-44e7-a062-2edfbf966cbd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4c26ed02b5de164940cd67649834b62d2030c8e84ce63407fcab132ac2c41695","name":"Hoài Nam","registered_at":"2026-06-17T17:33:00Z","symbol":"NIM1468200","token_address":"0xf99aebd638f00212af327f7e4dcea0b84bdf818d","type":"artist","uuid":"949a6c6b-d453-44e7-a062-2edfbf966cbd"}
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 0x4c26ed02b5de164940cd67649834b62d2030c8e84ce63407fcab132ac2c41695. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/949a6c6b-d453-44e7-a062-2edfbf966cbd.json and https://artists.proofprofile.net/proofs/artist/949a6c6b-d453-44e7-a062-2edfbf966cbd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x4c26ed02b5de164940cd67649834b62d2030c8e84ce63407fcab132ac2c41695","name":"Hoài Nam","registered_at":"2026-06-17T17:33:00Z","symbol":"NIM1468200","token_address":"0xf99aebd638f00212af327f7e4dcea0b84bdf818d","type":"artist","uuid":"949a6c6b-d453-44e7-a062-2edfbf966cbd"}
album: Shotguns Hải Ngoại Gold (Quê Hương Xa Vời)
  type: MusicAlbum
  date published: 1994-01-01
album: Cuộc tình bể dâu
  type: MusicAlbum
  date published: 1996-01-01
album: Em Cứ Hẹn
  type: MusicAlbum
  date published: 1996-01-01
album: Thư Cho Mẹ
  type: MusicAlbum
  date published: 1996-06-25
album: Chuyện Tình Buồn 100 Năm
  type: MusicAlbum
  date published: 1997-01-01
album: Chuyện Tình Buồn 100 Năm
  type: MusicAlbum
  date published: 1997-01-01
album: Trong Tầm Mắt Đời
  type: MusicAlbum
  date published: 1998-01-01
album: Mười Thương
  type: MusicAlbum
  date published: 1998-09-18
album: Chiều tây đô - Xua đi huyền thoại Di - Hoài Nam
  type: MusicAlbum
  date published: 2001-01-01
album: Tưởng Rằng Đã Quên
  type: MusicAlbum
  date published: 2018-03-01
album: Bài Tình Ca Cho Em
  type: MusicAlbum
  date published: 2018-07-16
album: Bài Tình Ca Cho Em
  type: MusicAlbum
  date published: 2018-07-16
album: Mẹ Quê
  type: MusicAlbum
  date published: 2018-07-25
album: Con Tim Cố Quên
  type: MusicAlbum
  date published: 2021-03-01
album: Bắc Ninh Ngày Tôi Về (Ca Khúc Về Thành Phố Bắc Ninh)
  type: MusicAlbum
  date published: 2022-08-22
album: Goodie Take Me Away (Extended Mix)
  type: MusicAlbum
  date published: 2024-03-06
album: Noi Dau Tu Mot Nguoi Den Sau (Extended Mix)
  type: MusicAlbum
  date published: 2024-03-07
album: Goodie Take Me Away (Extended Mix)
  type: MusicAlbum
  date published: 2024-03-07
album: Goodie Take Me Away (Short Version)
  type: MusicAlbum
  date published: 2024-07-03
album: Ngồi Thiền (Remastered)
  type: MusicAlbum
  date published: 2024-07-26
album: Một Ngày Thiền (Remastered)
  type: MusicAlbum
  date published: 2024-07-26
album: Mẹ Quê - Hoài Nam (Vol 3)
  type: MusicAlbum
  date published: 2025-01-14
track: Anh Vẫn Hành Quân
  type: MusicRecording
  duration: PT4M6S
  duration ms: 246439
  explicit: false
  by artist: Hoài Nam
  in album: Bài Ca Người Lính
    type: MusicAlbum
    date published: 2015-01-01
  isrc code: VNA0F1797990
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T02:16:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x006c714c792fe69d0d97dbbb8f7ea49c7391024ecd299e66aad435d397bf3a7c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960199
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960199
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1797990
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T02:30:29Z
  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 0x006c714c792fe69d0d97dbbb8f7ea49c7391024ecd299e66aad435d397bf3a7c. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/VNA0F1797990.
    date published: 2026-07-30T02:30:29Z
  audio: Anh Vẫn Hành Quân
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 127.243
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.766
    additional property: Energy
      type: PropertyValue
      value: 0.654
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.668
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.069
    additional property: Liveness
      type: PropertyValue
      value: 0.186
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.561
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.543
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Bài Ca Người Lính
  type: MusicRecording
  duration: PT4M2S
  duration ms: 242494
  explicit: false
  by artist: Cao Minh
  by artist: Hoài Nam
  in album: Bài Ca Người Lính
    type: MusicAlbum
    date published: 2015-01-01
  isrc code: VNA0F1797995
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  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: Bài Ca Người Lính
track: Xóm Làng Theo Bước Chân Anh

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-23T19:39:39+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x117a70353a412584e57b416dd91fb69388a94cb54c4dee9fbd109522c02bf5d1

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956304

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1797995

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

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 0x117a70353a412584e57b416dd91fb69388a94cb54c4dee9fbd109522c02bf5d1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/VNA0F1797995.
date published: 2026-07-02T03:55:08Z

Bài Ca Người Lính
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 154.933
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.648
additional property: Energy
  type: PropertyValue
  value: 0.65
additional property: Speechiness
  type: PropertyValue
  value: 0.062
additional property: Acousticness
  type: PropertyValue
  value: 0.379
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.147
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.469
additional property: Loudness (dB)
  type: PropertyValue
  value: -14.63
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Minor

Xóm Làng Theo Bước Chân Anh
type: MusicRecording
duration: PT3M28S
duration ms: 208091
explicit: false
by artist: Hoài Nam
in album: Hồ Chí Minh Đẹp Nhất Tên Người
  type: MusicAlbum
  date published: 2018-08-23
isrc code: VNA0M1822616
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:36:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2182b42576c30784f06361434c94e69ce1512c05a280ffdae60dff58d4bce95c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1822616
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0x2182b42576c30784f06361434c94e69ce1512c05a280ffdae60dff58d4bce95c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/VNA0M1822616.
  date published: 2026-07-08T03:22:41Z
audio: Xóm Làng Theo Bước Chân Anh
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.641
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.935
  additional property: Energy
    type: PropertyValue
    value: 0.338
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.174
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.682
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.926
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major