Larson Victor
type: MusicGroup
popularity: 17
followers: 222
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe25e3e2bfd175e875274d2e7bd0fa5bfa0a0860463cc6d46e66a85acaac9ae4c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953641
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953641
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3b44e155-04fb-409d-9469-4db90c4390d9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3b44e155-04fb-409d-9469-4db90c4390d9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3b44e155-04fb-409d-9469-4db90c4390d9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T13:54:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe25e3e2bfd175e875274d2e7bd0fa5bfa0a0860463cc6d46e66a85acaac9ae4c","name":"Larson Victor","registered_at":"2026-06-14T10:46:18Z","symbol":"NIM0428653","token_address":"0xd52d1a8c7a09b051ffd68fce67a6d7d4ee24e9d9","type":"artist","uuid":"3b44e155-04fb-409d-9469-4db90c4390d9"}
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 0xe25e3e2bfd175e875274d2e7bd0fa5bfa0a0860463cc6d46e66a85acaac9ae4c. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b44e155-04fb-409d-9469-4db90c4390d9.json and https://artists.proofprofile.net/proofs/artist/3b44e155-04fb-409d-9469-4db90c4390d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T13:54:28Z
  text: {"copyright_id":"0xe25e3e2bfd175e875274d2e7bd0fa5bfa0a0860463cc6d46e66a85acaac9ae4c","name":"Larson Victor","registered_at":"2026-06-14T10:46:18Z","symbol":"NIM0428653","token_address":"0xd52d1a8c7a09b051ffd68fce67a6d7d4ee24e9d9","type":"artist","uuid":"3b44e155-04fb-409d-9469-4db90c4390d9"}
album: Coincidência ou Azar
  type: MusicAlbum
  date published: 2022-02-25
album: No Rancho, Vol. 1 (Ao Vivo)
  type: MusicAlbum
  date published: 2022-07-15
album: No Rancho, Vol. 2 (Ao Vivo)
  type: MusicAlbum
  date published: 2022-09-08
album: No Rancho (Ao Vivo)
  type: MusicAlbum
  date published: 2023-03-09
  track: Roda Gigante - Ao Vivo
    type: MusicRecording
    duration: PT2M57S
    duration ms: 177673
    explicit: false
    by artist: Larson Victor
    in album: No Rancho (Ao Vivo)
      type: MusicAlbum
      date published: 2023-03-09
    isrc code: QZNJW2278590
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T20:22:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcc7da67312b4046a5c7ccbd76dafe8181d44c5da772e76190cf0a9a6960fe053
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958779
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958779
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJW2278590
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T21:08:39Z
    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 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 0xcc7da67312b4046a5c7ccbd76dafe8181d44c5da772e76190cf0a9a6960fe053. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZNJW2278590.
      date published: 2026-07-19T21:08:39Z
    audio: Roda Gigante - Ao Vivo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 111.946
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.797
      additional property: Energy
        type: PropertyValue
        value: 0.474
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.798
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.963
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.539
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.431
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Eu e Meu Pai
  type: MusicAlbum
  date published: 2025-08-07
  track: O Matuto
    type: MusicRecording
    duration: PT4M2S
    duration ms: 242207
    explicit: false
    by artist: Larson Victor
    in album: Eu e Meu Pai
      type: MusicAlbum
      date published: 2025-08-07
    isrc code: QZNJY2517162
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T13:33:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa294387fac452cbae7f2e4947ea4931911f981b0e52d2a34f77a8fb61169e9f3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2517162
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0xa294387fac452cbae7f2e4947ea4931911f981b0e52d2a34f77a8fb61169e9f3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNJY2517162.
      date published: 2026-07-03T19:59:51Z
    audio: O Matuto
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.087
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.644
      additional property: Energy
        type: PropertyValue
        value: 0.315
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.86
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Um Século Sem Ti

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.116

Valence (Positivity)
type: PropertyValue
value: 0.371

Loudness (dB)
type: PropertyValue
value: -5.545

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Um Século Sem Ti
type: MusicRecording
duration: PT3M48S
duration ms: 228366
explicit: false
by artist: Larson Victor
in album: Eu e Meu Pai
  type: MusicAlbum
  date published: 2025-08-07
isrc code: QZNJY2517167
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T07:00:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x83663564eb0dc8bc5121ee667da1d6d257689a5d56147ac0ad8fe4a75d92902e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956474
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956474
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2517167
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T08:56:35Z
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 0x83663564eb0dc8bc5121ee667da1d6d257689a5d56147ac0ad8fe4a75d92902e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNJY2517167.
  date published: 2026-07-03T08:56:35Z
audio: Um Século Sem Ti
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.287
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.696
  additional property: Energy
    type: PropertyValue
    value: 0.422
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.825
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.22
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.539
  additional property: Loudness (dB)
    type: PropertyValue
    value: -5.915
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major