LEONI
type: MusicGroup
description: Leoni is an Italian surname, literally meaning "lions". Notable people with this surname include: People Pier Leoni (died 1128), son of the Jewish convert Leo de Benedicto and founder of the Roman
popularity: 11
followers: 764
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x307cbf1bbe099d543efbba4a1ddd6801342e27e0c966b83ddd7dc728ca57b1fa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953654
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953654
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a0deee6-78e1-4102-b8ee-c6306ec78a47.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a0deee6-78e1-4102-b8ee-c6306ec78a47.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4a0deee6-78e1-4102-b8ee-c6306ec78a47
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:26:51Z
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 0x307cbf1bbe099d543efbba4a1ddd6801342e27e0c966b83ddd7dc728ca57b1fa. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a0deee6-78e1-4102-b8ee-c6306ec78a47.json and https://artists.proofprofile.net/proofs/artist/4a0deee6-78e1-4102-b8ee-c6306ec78a47.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:26:51Z
album: Supernova
  type: MusicAlbum
  date published: 2023-03-16
album: SUPERNOVA
  type: MusicAlbum
  date published: 2024-01-05
  track: SUPERNOVA
    type: MusicRecording
    duration: PT2M19S
    duration ms: 139906
    explicit: false
    by artist: LEONI
    in album: SUPERNOVA
      type: MusicAlbum
      date published: 2024-01-05
    isrc code: UKP8W2300021
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T04:37:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8cd2babd93208da87813362b3013bb60b1807756e6b0f48633129a70182162e8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958496
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958496
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKP8W2300021
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T04:43:53Z
    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 0x8cd2babd93208da87813362b3013bb60b1807756e6b0f48633129a70182162e8. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/UKP8W2300021.
      date published: 2026-07-18T04:43:53Z
    audio: SUPERNOVA
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.99
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.687
      additional property: Energy
        type: PropertyValue
        value: 0.849
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.055
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.193
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.345
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.159
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: LONELY IN LONDON
  type: MusicAlbum
  date published: 2024-05-31
  track: LONELY IN LONDON
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168866
    explicit: false
    by artist: LEONI
    in album: LONELY IN LONDON
      type: MusicAlbum
      date published: 2024-05-31
    isrc code: UKP8W2400023
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T19:27:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xede704c2c52894606d35833ac33cf63506ec2e35d9ffa886604923981fb09716
    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/UKP8W2400023
    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 0xede704c2c52894606d35833ac33cf63506ec2e35d9ffa886604923981fb09716. 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/UKP8W2400023.
      date published: 2026-07-03T19:59:51Z
    audio: LONELY IN LONDON
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.958
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.632
      additional property: Energy
        type: PropertyValue
        value: 0.777
      additional property: Speechiness
        type: PropertyValue
        value: 0.06
      additional property: Acousticness
        type: PropertyValue
        value: 0.004
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.082
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: SNAKES AND LADDERS
album: PRETTY GIRLS
album: OUTSIDE THE PARTY

Valence (Positivity)
type: PropertyValue
value: 0.535

Loudness (dB)
type: PropertyValue
value: -4.52

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor

SNAKES AND LADDERS
type: MusicAlbum
date published: 2024-07-12

PRETTY GIRLS
type: MusicAlbum
date published: 2025-03-07
track: PRETTY GIRLS
  type: MusicRecording
  duration: PT2M13S
  duration ms: 133440
  explicit: false
  by artist: LEONI
  in album: PRETTY GIRLS
    type: MusicAlbum
    date published: 2025-03-07
  isrc code: UKP8W2500001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-02T22:40:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcb664689d064dc56fe92a68374742ef879c9375e1f6f91fd679f41f552248e4a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956422
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956422
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKP8W2500001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T01:01:38Z
  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 0xcb664689d064dc56fe92a68374742ef879c9375e1f6f91fd679f41f552248e4a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/UKP8W2500001.
    date published: 2026-07-03T01:01:38Z
  audio: PRETTY GIRLS
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 110.995
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.801
    additional property: Energy
      type: PropertyValue
      value: 0.72
    additional property: Speechiness
      type: PropertyValue
      value: 0.068
    additional property: Acousticness
      type: PropertyValue
      value: 0.183
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.531
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.7
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.115
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major

OUTSIDE THE PARTY
type: MusicAlbum
date published: 2025-10-29