Leana Mask
type: MusicGroup
popularity: 18
followers: 394
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/b02c1c09-620c-4949-94c9-b7acaeacc860.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b02c1c09-620c-4949-94c9-b7acaeacc860
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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 0x6411b756357aaad2b1b4b770db4ad6c6dc61fc7d35e96fd9de9d1b1a7b9bc906. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b02c1c09-620c-4949-94c9-b7acaeacc860.json and https://artists.proofprofile.net/proofs/artist/b02c1c09-620c-4949-94c9-b7acaeacc860.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
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album: As the World Caves In
  type: MusicAlbum
  date published: 2021-10-20
album: BUTTER
  type: MusicAlbum
  date published: 2021-10-23
album: DYNAMITE
  type: MusicAlbum
  date published: 2021-10-23
album: STAY
  type: MusicAlbum
  date published: 2021-10-24
album: Killing me softly
  type: MusicAlbum
  date published: 2021-10-28
album: Сastle in the snow
  type: MusicAlbum
  date published: 2021-10-28
album: SOFIA
  type: MusicAlbum
  date published: 2021-10-31
album: Bubblegum bitch
  type: MusicAlbum
  date published: 2021-11-01
album: SNOWMAN
  type: MusicAlbum
  date published: 2021-11-19
album: everything i wanted
  type: MusicAlbum
  date published: 2022-02-16
album: easy on me
  type: MusicAlbum
  date published: 2022-03-08
album: FILTER
  type: MusicAlbum
  date published: 2022-03-25
album: Something Beautiful
  type: MusicAlbum
  date published: 2022-07-08
album: Happier Than Ever
  type: MusicAlbum
  date published: 2022-07-18
  track: Happier Than Ever
    type: MusicRecording
    duration: PT4M36S
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    by artist: Leana Mask
    in album: Happier Than Ever
      type: MusicAlbum
      date published: 2022-07-18
    isrc code: ESA012265407
    additional property: CopyrightID
    additional property: CopyrightStatus
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA012265407
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T20:39:42Z
    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 0xe86d51f3908c6d8338ab0d62eea509fbe5830138e2b9af9aea26c90bf9684a94. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ESA012265407.
      date published: 2026-07-14T20:39:42Z
    audio: Happier Than Ever
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 101.543
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
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      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.073
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.18
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
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album: Permission to Dance
  type: MusicAlbum
  date published: 2022-07-25
album: Summertime Sadness
  type: MusicAlbum
  date published: 2022-08-01
  track: Summertime Sadness
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    duration: PT4M4S
    duration ms: 244285
    explicit: false
    by artist: Leana Mask
    in album: Summertime Sadness
      type: MusicAlbum
      date published: 2022-08-01
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    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      type: PropertyValue
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    additional property: CopyrightChainExplorerURL
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    additional property: OTSBitcoinBlock
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA012269473
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:58:24Z
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Summertime Sadness
album: As the world caves in (hyperpop version)
album: Top 10 cover songs
album: Sweet dreams
album: Dancin
album: Euphoria
album: VALENTINES
album: Hold on tight
album: Fly me to the Moon
album: GOSSIP
album: A Cruel Angel's Thesis
album: 3D
album: Cupid
album: As the world caves in
album: Standing Next to You
album: The hanging TREE (A-capella version)
album: I Took A Pill in Ibiza
album: Castle in the snow
album: PEDRO
album: Sound of Silence
album: Build a bitch
album: Celebrate the Love
album: Сube of Ice
album: ILLUSION
album: ESPRESSO
album: DANCIN (House Version)
album: ENEMY
album: ONLINE
album: Hold on tight (Radio edit)
album: Ghost of My Future
album: Lighter

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fc88c79e21421260ce68a4ed3d42f16d1b9606b8dec0ba9cdbbb39cc05848f. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/ESA012269473.
date published: 2026-07-19T07:58:24Z

Summertime Sadness
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 111.985
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.638
additional property: Energy
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  value: 0.713
additional property: Speechiness
  type: PropertyValue
  value: 0.036
additional property: Acousticness
  type: PropertyValue
  value: 0.088
additional property: Instrumentalness
  type: PropertyValue
  value: 0.003
additional property: Liveness
  type: PropertyValue
  value: 0.235
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.345
additional property: Loudness (dB)
  type: PropertyValue
  value: -8.343
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Minor

As the world caves in (hyperpop version)
type: MusicAlbum
date published: 2022-08-22

Top 10 cover songs
type: MusicAlbum
date published: 2022-09-09

Sweet dreams
type: MusicAlbum
date published: 2022-11-04

Dancin
type: MusicAlbum
date published: 2022-12-09

Dancin
type: MusicAlbum
date published: 2022-12-25

Euphoria
type: MusicAlbum
date published: 2023-02-01

VALENTINES
type: MusicAlbum
date published: 2023-02-14

Hold on tight
type: MusicAlbum
date published: 2023-05-05
track: Hold on tight
  type: MusicRecording
  duration: PT2M40S
  duration ms: 160000
  explicit: false
  by artist: Leana Mask
  in album: Hold on tight
    type: MusicAlbum
    date published: 2023-05-05
  isrc code: GX5H92302145
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdf42f1263c937cdb35fabc545e7f1b0a8b791c450838fed525dd8376807a5a31
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958601
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX5H92302145
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T19:27:02Z
  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 0xdf42f1263c937cdb35fabc545e7f1b0a8b791c450838fed525dd8376807a5a31. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GX5H92302145.
    date published: 2026-07-18T19:27:02Z
  audio: Hold on tight
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.583
    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: 0.568
    additional property: Energy
      type: PropertyValue
      value: 0.774
    additional property: Speechiness
      type: PropertyValue
      value: 0.081
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.178
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.437
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.684
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
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Fly me to the Moon
type: MusicAlbum
date published: 2023-09-26

GOSSIP
type: MusicAlbum
date published: 2023-10-25

A Cruel Angel's Thesis
type: MusicAlbum
date published: 2023-12-11

3D
type: MusicAlbum
date published: 2023-12-11

Cupid
type: MusicAlbum
date published: 2024-02-02

As the world caves in
type: MusicAlbum
date published: 2024-02-16

Standing Next to You
type: MusicAlbum
date published: 2024-03-01

The hanging TREE (A-capella version)
type: MusicAlbum
date published: 2024-04-26

I Took A Pill in Ibiza
type: MusicAlbum
date published: 2024-05-15

Castle in the snow
type: MusicAlbum
date published: 2024-05-27

PEDRO
type: MusicAlbum
date published: 2024-06-03

Summertime Sadness
type: MusicAlbum
date published: 2024-06-17

Sound of Silence
type: MusicAlbum
date published: 2024-06-24

Build a bitch
type: MusicAlbum
date published: 2024-08-19

Celebrate the Love
type: MusicAlbum
date published: 2024-08-30

Сube of Ice
type: MusicAlbum
date published: 2024-09-08

ILLUSION
type: MusicAlbum
date published: 2024-10-11

ESPRESSO
type: MusicAlbum
date published: 2025-02-28

DANCIN (House Version)
type: MusicAlbum
date published: 2025-03-01

ENEMY
type: MusicAlbum
date published: 2025-03-21

ONLINE
type: MusicAlbum
date published: 2025-03-28

Hold on tight (Radio edit)
type: MusicAlbum
date published: 2025-06-06

Ghost of My Future
type: MusicAlbum
date published: 2025-06-13

Lighter
type: MusicAlbum
date published: 2025-06-23