LeonhardtMills
type: MusicGroup
popularity: 9
followers: 108
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2de0edb172f684e3a43e28754b4954f567723770296f20b7493b6fda7a22426
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8fc301e8-b870-4dde-ab69-273d9adb5776.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8fc301e8-b870-4dde-ab69-273d9adb5776.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8fc301e8-b870-4dde-ab69-273d9adb5776
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
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 0xd2de0edb172f684e3a43e28754b4954f567723770296f20b7493b6fda7a22426. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8fc301e8-b870-4dde-ab69-273d9adb5776.json and https://artists.proofprofile.net/proofs/artist/8fc301e8-b870-4dde-ab69-273d9adb5776.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
album: KANATA HALUKA
  type: MusicAlbum
  date published: 2024-02-10
album: No Longer You (female cover)
  type: MusicAlbum
  date published: 2024-06-29
  track: No Longer You - female cover
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179501
    explicit: false
    by artist: LeonhardtMills
    in album: No Longer You (female cover)
      type: MusicAlbum
      date published: 2024-06-29
    isrc code: QZPJ32375452
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T19:31:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x02830e93f66071934c893bdaabc63e0795a75cdfd9dfcd467dd54ec91656e18a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958774
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958774
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32375452
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T20:03:27Z
    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 0x02830e93f66071934c893bdaabc63e0795a75cdfd9dfcd467dd54ec91656e18a. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZPJ32375452.
      date published: 2026-07-19T20:03:27Z
    audio: No Longer You - female cover
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 199.92
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 1
      additional property: Danceability
        type: PropertyValue
        value: 0.272
      additional property: Energy
        type: PropertyValue
        value: 0.25
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.867
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.332
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.67
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.588
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: No longer you - Instrumental cover
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179501
    explicit: false
    by artist: LeonhardtMills
    in album: No Longer You (female cover)
      type: MusicAlbum
      date published: 2024-06-29
    isrc code: QZPJ32375453
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T21:37:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x540537120ecfd913bde1fb51677004ff4ccd333096db1fb1a1a99e7951a5e180
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957759
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957759
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32375453
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T21:46:51Z
    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 0x540537120ecfd913bde1fb51677004ff4ccd333096db1fb1a1a99e7951a5e180. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZPJ32375453.
      date published: 2026-07-12T21:46:51Z
    audio: No longer you - Instrumental cover
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.086
      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: 0.29
      additional property: Energy
        type: PropertyValue
        value: 0.305
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.9
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.804
      additional property: Liveness
        type: PropertyValue
        value: 0.332
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.242
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.025
      additional property: Key Name
      additional property: Mode Name
album: 小山の子うさぎ (acapella cover)
album: Small Mountain Rabbit (english acapella cover)
album: Dangerous
album: By My Side
album: Holiday Sparks
album: My Clematis (from ALIEN STAGE)
album: The Line (from ARCANE season 2)
album: Last Cup of Coffee
album: wiege (from ALIEN STAGE)
album: Ruler of my Heart (from ALIEN STAGE)
album: Honeymoon Un Deux Trois | 蜜月アン・ドゥ・トロワ
album: Mephisto |メフィスト
album: MIRROR (Leo cover)
album: Harpy Hare
album: Harpy Hare (cover en español)
album: Just a Man (female ver.)
album: Sweet Dream (from ALIEN STAGE)
album: On Melancholy Hill
album: Your Idol (female cover)
album: Daisy Bell

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor

小山の子うさぎ (acapella cover)
type: MusicAlbum
date published: 2024-07-12

Small Mountain Rabbit (english acapella cover)
type: MusicAlbum
date published: 2024-07-17
track: 小山の子うさぎ - acapella cover
  type: MusicRecording
  duration: PT1M18S
  duration ms: 78852
  explicit: false
  by artist: LeonhardtMills
  in album: Small Mountain Rabbit (english acapella cover)
    type: MusicAlbum
    date published: 2024-07-17
  isrc code: QZPJ32372702
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T07:25:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9b6b792c74d3cef1566db2f7b0d9dbc4fe30c2448bfdd0e540db2cf80c1883de
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32372702
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
  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 0x9b6b792c74d3cef1566db2f7b0d9dbc4fe30c2448bfdd0e540db2cf80c1883de. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZPJ32372702.
    date published: 2026-07-04T10:04:33Z
  audio: 小山の子うさぎ - acapella cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.754
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 1
    additional property: Danceability
      type: PropertyValue
      value: 0.572
    additional property: Energy
      type: PropertyValue
      value: 0.022
    additional property: Speechiness
      type: PropertyValue
      value: 0.063
    additional property: Acousticness
      type: PropertyValue
      value: 0.978
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.103
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.369
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.126
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

Dangerous
type: MusicAlbum
date published: 2024-12-16

By My Side
type: MusicAlbum
date published: 2024-12-27

Holiday Sparks
type: MusicAlbum
date published: 2024-12-31

My Clematis (from ALIEN STAGE)
type: MusicAlbum
date published: 2025-04-21

The Line (from ARCANE season 2)
type: MusicAlbum
date published: 2025-04-21

Last Cup of Coffee
type: MusicAlbum
date published: 2025-04-21

wiege (from ALIEN STAGE)
type: MusicAlbum
date published: 2025-06-06

Ruler of my Heart (from ALIEN STAGE)
type: MusicAlbum
date published: 2025-06-28

Honeymoon Un Deux Trois | 蜜月アン・ドゥ・トロワ
type: MusicAlbum
date published: 2025-08-04

Mephisto |メフィスト
type: MusicAlbum
date published: 2025-08-04

MIRROR (Leo cover)
type: MusicAlbum
date published: 2025-08-12

Harpy Hare
type: MusicAlbum
date published: 2025-08-19

Harpy Hare (cover en español)
type: MusicAlbum
date published: 2025-08-19

Just a Man (female ver.)
type: MusicAlbum
date published: 2025-08-20

Sweet Dream (from ALIEN STAGE)
type: MusicAlbum
date published: 2025-08-22

On Melancholy Hill
type: MusicAlbum
date published: 2025-09-03

Your Idol (female cover)
type: MusicAlbum
date published: 2025-09-16

Daisy Bell
type: MusicAlbum
date published: 2025-09-19