SM Nazrul
type: MusicGroup
popularity: 3
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb1a983c8513d009441b58dd18c90bbc666f2898034c04d16601a1a3da8097d71
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e27c0a3b-bb9c-45ef-a7cd-d9133e0ea0ab.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e27c0a3b-bb9c-45ef-a7cd-d9133e0ea0ab.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e27c0a3b-bb9c-45ef-a7cd-d9133e0ea0ab
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb1a983c8513d009441b58dd18c90bbc666f2898034c04d16601a1a3da8097d71","name":"SM Nazrul","registered_at":"2026-06-21T07:30:38Z","symbol":"NIM1862960","token_address":"0x7e4801d3b85b7043f8a9e86eec3e7fe9bad37c6e","type":"artist","uuid":"e27c0a3b-bb9c-45ef-a7cd-d9133e0ea0ab"}
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 0xb1a983c8513d009441b58dd18c90bbc666f2898034c04d16601a1a3da8097d71. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e27c0a3b-bb9c-45ef-a7cd-d9133e0ea0ab.json and https://artists.proofprofile.net/proofs/artist/e27c0a3b-bb9c-45ef-a7cd-d9133e0ea0ab.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0xb1a983c8513d009441b58dd18c90bbc666f2898034c04d16601a1a3da8097d71","name":"SM Nazrul","registered_at":"2026-06-21T07:30:38Z","symbol":"NIM1862960","token_address":"0x7e4801d3b85b7043f8a9e86eec3e7fe9bad37c6e","type":"artist","uuid":"e27c0a3b-bb9c-45ef-a7cd-d9133e0ea0ab"}
album: Tumi ami Raji
  type: MusicAlbum
  date published: 2025-04-28
album: Dekhle Tore Jakkas Lage Maiya
  type: MusicAlbum
  date published: 2025-05-12
album: Kurbani Kurbani
  type: MusicAlbum
  date published: 2025-05-30
album: Ami Scooty Chalabo Uraiya
  type: MusicAlbum
  date published: 2025-06-30
album: Jotone Rakhiyo
  type: MusicAlbum
  date published: 2025-07-28
  track: Jotone Rakhiyo
    type: MusicRecording
    duration: PT4M16S
    duration ms: 256208
    explicit: false
    by artist: SM Nazrul
    in album: Jotone Rakhiyo
      type: MusicAlbum
      date published: 2025-07-28
    isrc code: QZWDW2578906
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T03:49:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x86f098983dc0b5fa2c27fb5ac0357b92bb76c1cd2487ee60752fc1cdc12b7887
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDW2578906
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 0x86f098983dc0b5fa2c27fb5ac0357b92bb76c1cd2487ee60752fc1cdc12b7887. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDW2578906 — a six-check JSON result.
      date published: 2026-07-06T06:56:49Z
    audio: Jotone Rakhiyo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.973
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.791
      additional property: Energy
        type: PropertyValue
        value: 0.399
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.673
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.116
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.8
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.818
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tui Amar Hoye Gele
  type: MusicAlbum
  date published: 2025-08-06