Lean Chihiro
type: MusicGroup
popularity: 13
followers: 8467
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xda266521c1d545fca8c531001a394b3a9f6a5b97f6b3c76222ac0285d8e69412
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953694
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953694
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6ef3c627-e929-407f-b8ac-539dfdebb536.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6ef3c627-e929-407f-b8ac-539dfdebb536.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6ef3c627-e929-407f-b8ac-539dfdebb536
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:38:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xda266521c1d545fca8c531001a394b3a9f6a5b97f6b3c76222ac0285d8e69412","name":"Lean Chihiro","registered_at":"2026-06-14T16:02:27Z","symbol":"NIM0504083","token_address":"0xb88c2837dd6f58bb59fb5003689d3a85be3ebd84","type":"artist","uuid":"6ef3c627-e929-407f-b8ac-539dfdebb536"}
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 0xda266521c1d545fca8c531001a394b3a9f6a5b97f6b3c76222ac0285d8e69412. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ef3c627-e929-407f-b8ac-539dfdebb536.json and https://artists.proofprofile.net/proofs/artist/6ef3c627-e929-407f-b8ac-539dfdebb536.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:38:09Z
  text: {"copyright_id":"0xda266521c1d545fca8c531001a394b3a9f6a5b97f6b3c76222ac0285d8e69412","name":"Lean Chihiro","registered_at":"2026-06-14T16:02:27Z","symbol":"NIM0504083","token_address":"0xb88c2837dd6f58bb59fb5003689d3a85be3ebd84","type":"artist","uuid":"6ef3c627-e929-407f-b8ac-539dfdebb536"}
album: Summer Hunter
  type: MusicAlbum
  date published: 2017-06-04
  track: Summer Hunter
    type: MusicRecording
    duration: PT1M57S
    duration ms: 117001
    explicit: true
    by artist: Lean Chihiro
    in album: Summer Hunter
      type: MusicAlbum
      date published: 2017-06-04
    isrc code: TCADC1761234
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T22:30:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa34ab09fb375146b219d54c4bf762f8f154d5b292cee4bf586653481f6aa1ed4
    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/TCADC1761234
    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 0xa34ab09fb375146b219d54c4bf762f8f154d5b292cee4bf586653481f6aa1ed4. 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/TCADC1761234.
      date published: 2026-07-04T10:04:33Z
    audio: Summer Hunter
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 147.964
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.648
      additional property: Energy
        type: PropertyValue
        value: 0.857
      additional property: Speechiness
        type: PropertyValue
        value: 0.355
      additional property: Acousticness
        type: PropertyValue
        value: 0.817
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.581
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.749
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.328
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Summer Hunter
  type: MusicAlbum
  date published: 2017-06-04
album: Summer Hunter 2
  type: MusicAlbum
  date published: 2017-09-03
album: Free L (3l / Lll)
  type: MusicAlbum
  date published: 2017-10-23
album: Free L
  type: MusicAlbum
  date published: 2017-10-23
album: Summer Hunter
  type: MusicAlbum
  date published: 2017-11-10
album: Ca$h in Ca$h Out
  type: MusicAlbum
  date published: 2017-11-30
album: Ca$h in Ca$h out
  type: MusicAlbum
  date published: 2017-11-30
album: Merry XXXmas Hoe
  type: MusicAlbum
  date published: 2017-12-25
album: Merry Xxxmas Hoe
  type: MusicAlbum
  date published: 2017-12-25
album: Eww Starf
  type: MusicAlbum
  date published: 2018-02-02
album: Eww Starf
  type: MusicAlbum
  date published: 2018-02-02
album: Black Mirror
  type: MusicAlbum
  date published: 2018-03-22
album: Black Mirror
  type: MusicAlbum
  date published: 2018-03-22
album: Let Me Go
  type: MusicAlbum
  date published: 2018-05-27
album: Let Me Go
  type: MusicAlbum
  date published: 2018-05-27
album: Summer Hunter 2
  type: MusicAlbum
  date published: 2018-09-03
album: Remember Me
  type: MusicAlbum
  date published: 2018-12-01
album: Règlement Space #7
  type: MusicAlbum
  date published: 2018-12-21
  track: Règlement Space #7
    type: MusicRecording
    duration: PT2M2S
    duration ms: 122342
    explicit: false
    by artist: Lean Chihiro
    in album: Règlement Space #7
      type: MusicAlbum
      date published: 2018-12-21
    isrc code: FRIDO1811783
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-30T02:39:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8206de9f95e44ac607cbadcd1e7704d0e6220c4f9a380e1e604f601e280f8111
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956375
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Règlement Space #7
album: Running Dry
album: XXXMas Time (Freestyle)
album: Don't Call
album: To the Max
album: Ice Cold Bubble Tea
album: Pull Up
album: Teenage Humanoid
album: Keep It Up
album: EASY
album: BANDS
album: Nothing Ever Goes As Planned
album: Monsters
album: 22
album: BIG LEAN
album: Die4me

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956375

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRIDO1811783

OTSTimestamp
type: PropertyValue
value: 2026-07-02T16:51:38Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8206de9f95e44ac607cbadcd1e7704d0e6220c4f9a380e1e604f601e280f8111. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRIDO1811783.
date published: 2026-07-02T16:51:38Z

Règlement Space #7
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 157.143
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.703
additional property: Energy
  type: PropertyValue
  value: 0.554
additional property: Speechiness
  type: PropertyValue
  value: 0.227
additional property: Acousticness
  type: PropertyValue
  value: 0.782
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.176
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.779
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.268
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Major

Running Dry
type: MusicAlbum
date published: 2019-07-12

Running Dry
type: MusicAlbum
date published: 2019-07-12

XXXMas Time (Freestyle)
type: MusicAlbum
date published: 2019-12-30

Don't Call
type: MusicAlbum
date published: 2020-01-15

To the Max
type: MusicAlbum
date published: 2020-06-05

Ice Cold Bubble Tea
type: MusicAlbum
date published: 2020-07-03

Pull Up
type: MusicAlbum
date published: 2020-08-07

Teenage Humanoid
type: MusicAlbum
date published: 2020-08-28

Teenage Humanoid
type: MusicAlbum
date published: 2020-08-28

Keep It Up
type: MusicAlbum
date published: 2021-03-22

EASY
type: MusicAlbum
date published: 2022-02-22

BANDS
type: MusicAlbum
date published: 2022-08-19

Nothing Ever Goes As Planned
type: MusicAlbum
date published: 2022-09-09

Monsters
type: MusicAlbum
date published: 2022-10-31

22
type: MusicAlbum
date published: 2023-09-01

BIG LEAN
type: MusicAlbum
date published: 2024-06-20

Die4me
type: MusicAlbum
date published: 2025-07-25