Xám
type: MusicGroup
genre: vietnamese hip hop
popularity: 5
followers: 285
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e51289b7c3aac625f07067cd31591efe6769931b0ca40390bb8a7b3d1e0b2d9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/122135de-702c-415d-9be0-899b9e213fa0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/122135de-702c-415d-9be0-899b9e213fa0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/122135de-702c-415d-9be0-899b9e213fa0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7e51289b7c3aac625f07067cd31591efe6769931b0ca40390bb8a7b3d1e0b2d9","name":"Xám","registered_at":"2026-06-15T20:05:55Z","symbol":"NIM0817520","token_address":"0xaaffb055346484ae360d31078fa7d525bca3a306","type":"artist","uuid":"122135de-702c-415d-9be0-899b9e213fa0"}
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 0x7e51289b7c3aac625f07067cd31591efe6769931b0ca40390bb8a7b3d1e0b2d9. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/122135de-702c-415d-9be0-899b9e213fa0.json and https://artists.proofprofile.net/proofs/artist/122135de-702c-415d-9be0-899b9e213fa0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0x7e51289b7c3aac625f07067cd31591efe6769931b0ca40390bb8a7b3d1e0b2d9","name":"Xám","registered_at":"2026-06-15T20:05:55Z","symbol":"NIM0817520","token_address":"0xaaffb055346484ae360d31078fa7d525bca3a306","type":"artist","uuid":"122135de-702c-415d-9be0-899b9e213fa0"}
album: Mọi Thứ Sẽ Ổn Thôi
  type: MusicAlbum
  date published: 2020-08-03
album: Gió Mang Em Đi
  type: MusicAlbum
  date published: 2022-01-04
album: khoảnh khắc bước bên em
  type: MusicAlbum
  date published: 2023-05-31
  track: khoảnh khắc bước bên em
    type: MusicRecording
    duration: PT3M41S
    duration ms: 221721
    explicit: false
    by artist: Xám
    in album: khoảnh khắc bước bên em
      type: MusicAlbum
      date published: 2023-05-31
    genre: vietnamese hip hop
    isrc code: VNA2E2312823
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T05:14:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1ef874ff62153199151485c7605c4d168c1fd30a8f1a34ff85c954260460e615
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958501
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958501
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA2E2312823
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T05:33:04Z
    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 0x1ef874ff62153199151485c7605c4d168c1fd30a8f1a34ff85c954260460e615. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/VNA2E2312823.
      date published: 2026-07-18T05:33:04Z
    audio: khoảnh khắc bước bên em
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.036
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.716
      additional property: Energy
        type: PropertyValue
        value: 0.462
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.703
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.754
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.962
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major