Letra B | LB
type: MusicGroup
popularity: 10
followers: 51
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a2a51dc4cbb47886b347f0fd807762ceec880f784d00e49cc63fd5d115cd5a0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/784580e1-762c-4d8f-9aef-1a28a0573931.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/784580e1-762c-4d8f-9aef-1a28a0573931.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/784580e1-762c-4d8f-9aef-1a28a0573931
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4a2a51dc4cbb47886b347f0fd807762ceec880f784d00e49cc63fd5d115cd5a0","name":"Letra B | LB","registered_at":"2026-06-17T07:35:52Z","symbol":"NIM1325814","token_address":"0xbb020f091d51b83a127ecc9502aaf6d99620276a","type":"artist","uuid":"784580e1-762c-4d8f-9aef-1a28a0573931"}
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 0x4a2a51dc4cbb47886b347f0fd807762ceec880f784d00e49cc63fd5d115cd5a0. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/784580e1-762c-4d8f-9aef-1a28a0573931.json and https://artists.proofprofile.net/proofs/artist/784580e1-762c-4d8f-9aef-1a28a0573931.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x4a2a51dc4cbb47886b347f0fd807762ceec880f784d00e49cc63fd5d115cd5a0","name":"Letra B | LB","registered_at":"2026-06-17T07:35:52Z","symbol":"NIM1325814","token_address":"0xbb020f091d51b83a127ecc9502aaf6d99620276a","type":"artist","uuid":"784580e1-762c-4d8f-9aef-1a28a0573931"}
album: Real G4nga Man
  type: MusicAlbum
  date published: 2024-11-25
album: Real G4nga Man
  type: MusicAlbum
  date published: 2024-11-25
  track: Real G4nga Man
    type: MusicRecording
    duration: PT2M14S
    duration ms: 134869
    explicit: true
    by artist: Letra B | LB
    in album: Real G4nga Man
      type: MusicAlbum
      date published: 2024-11-25
    isrc code: QZN882402960
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T09:55:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6284a16c320dcf24e896211a6ead393b3135950a6ae7191ec90ff30e95c3fa89
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958142
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958142
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882402960
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T12:57:08Z
    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 0x6284a16c320dcf24e896211a6ead393b3135950a6ae7191ec90ff30e95c3fa89. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:57:08Z), 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/QZN882402960.
      date published: 2026-07-15T12:57:08Z
    audio: Real G4nga Man
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.054
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.851
      additional property: Energy
        type: PropertyValue
        value: 0.787
      additional property: Speechiness
        type: PropertyValue
        value: 0.321
      additional property: Acousticness
        type: PropertyValue
        value: 0.297
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.118
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.506
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.778
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: BMX (feat. AN66, DeivyZz)
  type: MusicAlbum
  date published: 2024-12-08
album: CHOTAS
  type: MusicAlbum
  date published: 2024-12-09
album: Romeo Sin Julieta
  type: MusicAlbum
  date published: 2024-12-18
album: KittyGyal
  type: MusicAlbum
  date published: 2025-01-21
album: Sin Photoshop
  type: MusicAlbum
  date published: 2025-03-09
  track: Sin Photoshop
    type: MusicRecording
    duration: PT2M14S
    duration ms: 134206
    explicit: false
    by artist: Letra B | LB
    in album: Sin Photoshop
      type: MusicAlbum
      date published: 2025-03-09
    isrc code: QZHN82575201
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T23:45:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdcc65bdf73e3179a027bbccd534505715d8a0c0aaed91aa836286f9ea5a06387
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958943
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958943
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN82575201
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T00:27:37Z
    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 0xdcc65bdf73e3179a027bbccd534505715d8a0c0aaed91aa836286f9ea5a06387. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZHN82575201.
      date published: 2026-07-21T00:27:37Z
    audio: Sin Photoshop
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 87.685
      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: 0.578
      additional property: Energy
        type: PropertyValue
        value: 0.876
      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: La Rita
album: Real G4nga Man (Remix)
album: TU BBY
album: Ley 245

Speechiness
type: PropertyValue
value: 0.229

Acousticness
type: PropertyValue
value: 0.48

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.112

Valence (Positivity)
type: PropertyValue
value: 0.609

Loudness (dB)
type: PropertyValue
value: -4.31

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor

Sin Photoshop
type: MusicAlbum
date published: 2025-03-09

La Rita
type: MusicAlbum
date published: 2025-06-03

Real G4nga Man (Remix)
type: MusicAlbum
date published: 2025-06-19

TU BBY
type: MusicAlbum
date published: 2025-07-10

Ley 245
type: MusicAlbum
date published: 2025-08-09