Cheruu
type: MusicGroup
popularity: 8
followers: 660
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb15adc7f1b454cce88c286439c59c1194a757115d1b29055502c6bc02877187f
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/80735b89-437c-42ff-b135-829d3860b213.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/80735b89-437c-42ff-b135-829d3860b213.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/80735b89-437c-42ff-b135-829d3860b213
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15adc7f1b454cce88c286439c59c1194a757115d1b29055502c6bc02877187f. 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/80735b89-437c-42ff-b135-829d3860b213.json and https://artists.proofprofile.net/proofs/artist/80735b89-437c-42ff-b135-829d3860b213.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
album: Pole Pole
  type: MusicAlbum
  date published: 2022-05-18
album: Over and Over
  type: MusicAlbum
  date published: 2023-06-14
album: Illusion
  type: MusicAlbum
  date published: 2023-06-24
album: Tears In The Rain
  type: MusicAlbum
  date published: 2023-07-01
album: Soul
  type: MusicAlbum
  date published: 2024-01-31
album: River
  type: MusicAlbum
  date published: 2024-03-22
album: Soul
  type: MusicAlbum
  date published: 2024-07-17
  track: Sema
    type: MusicRecording
    duration: PT4M8S
    duration ms: 248000
    explicit: false
    by artist: Cheruu
    in album: Soul
      type: MusicAlbum
      date published: 2024-07-17
    isrc code: QZNWW2436847
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T00:32:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x55a921aea6540f0506e99e309a48bc47183a2e4c9ade0a5125d3411a74b24de1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2436847
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0x55a921aea6540f0506e99e309a48bc47183a2e4c9ade0a5125d3411a74b24de1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZNWW2436847.
      date published: 2026-07-06T01:25:57Z
    audio: Sema
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.803
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.381
      additional property: Energy
        type: PropertyValue
        value: 0.285
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.669
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.135
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.274
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Sawasawa
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202025
    explicit: false
    by artist: Cheruu
    in album: Soul
      type: MusicAlbum
      date published: 2024-07-17
    isrc code: QZNWW2436849
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T14:43:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x942c7088e1ae33799b3d8baf6cbf96c4d0d01495724b256cd9caed95300cb9de
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958166
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958166
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2436849
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T17:45:23Z
    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 0x942c7088e1ae33799b3d8baf6cbf96c4d0d01495724b256cd9caed95300cb9de. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:45:23Z), 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/QZNWW2436849.
      date published: 2026-07-15T17:45:23Z
    audio: Sawasawa
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 78.872
      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: 0.48
      additional property: Energy
        type: PropertyValue
        value: 0.541
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Pewa
album: Subira

Acousticness
type: PropertyValue
value: 0.39

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.645

Valence (Positivity)
type: PropertyValue
value: 0.372

Loudness (dB)
type: PropertyValue
value: -8.469

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Minor

Pewa
type: MusicAlbum
date published: 2025-06-19

Subira
type: MusicAlbum
date published: 2025-09-16