Zack Zhu
type: MusicGroup
genre: lo-fi
popularity: 15
followers: 180
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa11670ae842d2fa007f06374f93bc47d9b443a9dcbc3c35f9333a613b711ec51
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953713
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953713
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/816634f0-643a-4376-b5d6-45c063e5c35f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/816634f0-643a-4376-b5d6-45c063e5c35f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/816634f0-643a-4376-b5d6-45c063e5c35f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T00:33:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa11670ae842d2fa007f06374f93bc47d9b443a9dcbc3c35f9333a613b711ec51","name":"Zack Zhu","registered_at":"2026-06-14T18:06:06Z","symbol":"NIM0533552","token_address":"0x2ecc4d007858cc22c81fa10c6b2f3532d6afb52b","type":"artist","uuid":"816634f0-643a-4376-b5d6-45c063e5c35f"}
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 0xa11670ae842d2fa007f06374f93bc47d9b443a9dcbc3c35f9333a613b711ec51. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/816634f0-643a-4376-b5d6-45c063e5c35f.json and https://artists.proofprofile.net/proofs/artist/816634f0-643a-4376-b5d6-45c063e5c35f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T00:43:59Z
  text: {"copyright_id":"0xa11670ae842d2fa007f06374f93bc47d9b443a9dcbc3c35f9333a613b711ec51","name":"Zack Zhu","registered_at":"2026-06-14T18:06:06Z","symbol":"NIM0533552","token_address":"0x2ecc4d007858cc22c81fa10c6b2f3532d6afb52b","type":"artist","uuid":"816634f0-643a-4376-b5d6-45c063e5c35f"}
album: Frontal Lowb
  type: MusicAlbum
  date published: 2021-06-13
album: honestly
  type: MusicAlbum
  date published: 2022-09-11
album: counting sheep
  type: MusicAlbum
  date published: 2022-10-10
album: clockworks
  type: MusicAlbum
  date published: 2022-11-13
album: baby blue
  type: MusicAlbum
  date published: 2023-04-09
album: valeria
  type: MusicAlbum
  date published: 2023-06-04
album: grow closer
  type: MusicAlbum
  date published: 2024-05-31
album: Raincape
  type: MusicAlbum
  date published: 2025-03-07
album: one drop at a time
  type: MusicAlbum
  date published: 2025-05-02
album: blinds are still closed
  type: MusicAlbum
  date published: 2025-06-13
track: counting sheep

counting sheep
type: MusicRecording
duration: PT1M56S
duration ms: 116756
explicit: false
by artist: Zack Zhu
in album: Lofi Dreams 3
  type: MusicAlbum
  date published: 2023-09-22
isrc code: SE5IB2296483
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T10:58:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x07c359ebd9e2dcd6acd4eca7052a978f621fb8011fce21b49c875f064e221285
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957061
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957061
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5IB2296483
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:07:00Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957061
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T16:07:00+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c359ebd9e2dcd6acd4eca7052a978f621fb8011fce21b49c875f064e221285. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/SE5IB2296483.
  date published: 2026-07-07T16:07:00Z
audio: counting sheep
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.345
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.611
  additional property: Energy
    type: PropertyValue
    value: 0.152
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.892
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.943
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.065
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.104
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major