Lucas Valentine
type: MusicGroup
genre: j-rap
popularity: 7
followers: 82
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd41edd14a5c2c2f1840c9aed68e14fa07aba1602b608a2a0bafd811d2bcdcf22
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d780e4cb-4275-45ef-bbdc-8f08bcce3085.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d780e4cb-4275-45ef-bbdc-8f08bcce3085.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d780e4cb-4275-45ef-bbdc-8f08bcce3085
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd41edd14a5c2c2f1840c9aed68e14fa07aba1602b608a2a0bafd811d2bcdcf22","name":"Lucas Valentine","registered_at":"2026-06-21T03:38:54Z","symbol":"NIM1807768","token_address":"0xe8e4d5900a68cb3ff462413cd3cd138560df3218","type":"artist","uuid":"d780e4cb-4275-45ef-bbdc-8f08bcce3085"}
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 0xd41edd14a5c2c2f1840c9aed68e14fa07aba1602b608a2a0bafd811d2bcdcf22. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d780e4cb-4275-45ef-bbdc-8f08bcce3085.json and https://artists.proofprofile.net/proofs/artist/d780e4cb-4275-45ef-bbdc-8f08bcce3085.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xd41edd14a5c2c2f1840c9aed68e14fa07aba1602b608a2a0bafd811d2bcdcf22","name":"Lucas Valentine","registered_at":"2026-06-21T03:38:54Z","symbol":"NIM1807768","token_address":"0xe8e4d5900a68cb3ff462413cd3cd138560df3218","type":"artist","uuid":"d780e4cb-4275-45ef-bbdc-8f08bcce3085"}
album: 八百八調 MIXTAPE
  type: MusicAlbum
  date published: 2024-12-04
  track: JIJITSU_TASHIKANI
    type: MusicRecording
    duration: PT2M35S
    duration ms: 155282
    explicit: true
    by artist: Lucas Valentine
    in album: 八百八調 MIXTAPE
      type: MusicAlbum
      date published: 2024-12-04
    genre: j-rap
    isrc code: TCJPC2473924
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T22:43:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x45881c636ed76daf91fd2a5386abe0ce517f559d23f6cd4da3d12d97417ad4c6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958793
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958793
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2473924
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T01:45:42Z
    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 0x45881c636ed76daf91fd2a5386abe0ce517f559d23f6cd4da3d12d97417ad4c6. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:45:42Z), 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/TCJPC2473924.
      date published: 2026-07-20T01:45:42Z
    audio: JIJITSU_TASHIKANI
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 147.087
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.711
      additional property: Energy
        type: PropertyValue
        value: 0.764
      additional property: Speechiness
        type: PropertyValue
        value: 0.32
      additional property: Acousticness
        type: PropertyValue
        value: 0.049
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.418
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.14
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.57
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: NANI_MEZASHITERUNO
    type: MusicRecording
    duration: PT2M29S
    duration ms: 149936
    explicit: true
    by artist: Lucas Valentine
    in album: 八百八調 MIXTAPE
      type: MusicAlbum
      date published: 2024-12-04
    genre: j-rap
    isrc code: TCJPC2473928
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T02:35:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdcec31580def5d8ec3eacfa6b3247c4b22f7c950e1544401f853c1748ee3175d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959094
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959094
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2473928
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T05:37:51Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcec31580def5d8ec3eacfa6b3247c4b22f7c950e1544401f853c1748ee3175d. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:37:51Z), 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/TCJPC2473928.
      date published: 2026-07-22T05:37:51Z
    audio: NANI_MEZASHITERUNO
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 171.89
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.457
      additional property: Energy
        type: PropertyValue
        value: 0.724
      additional property: Speechiness
        type: PropertyValue
        value: 0.339
      additional property: Acousticness
        type: PropertyValue
        value: 0.376
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.281
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.445
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Happyaku Yacho Mixtape

Loudness (dB)
type: PropertyValue
value: -6.322

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor

Happyaku Yacho Mixtape
type: MusicAlbum
date published: 2024-12-04