Lai Kei
type: MusicGroup
popularity: 2
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc087861fdff7944471ec66a7a7c612b08bebb0fdc0e3c30f1eebd9ae8ae66593
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0503c808-232a-471a-a79a-4ca043b26db6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0503c808-232a-471a-a79a-4ca043b26db6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0503c808-232a-471a-a79a-4ca043b26db6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc087861fdff7944471ec66a7a7c612b08bebb0fdc0e3c30f1eebd9ae8ae66593","name":"Lai Kei","registered_at":"2026-06-15T15:28:50Z","symbol":"NIM0751404","token_address":"0x6180467829eae3a2b4ab6d15be4b2ae49d923cd9","type":"artist","uuid":"0503c808-232a-471a-a79a-4ca043b26db6"}
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 0xc087861fdff7944471ec66a7a7c612b08bebb0fdc0e3c30f1eebd9ae8ae66593. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0503c808-232a-471a-a79a-4ca043b26db6.json and https://artists.proofprofile.net/proofs/artist/0503c808-232a-471a-a79a-4ca043b26db6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:09:47Z
  text: {"copyright_id":"0xc087861fdff7944471ec66a7a7c612b08bebb0fdc0e3c30f1eebd9ae8ae66593","name":"Lai Kei","registered_at":"2026-06-15T15:28:50Z","symbol":"NIM0751404","token_address":"0x6180467829eae3a2b4ab6d15be4b2ae49d923cd9","type":"artist","uuid":"0503c808-232a-471a-a79a-4ca043b26db6"}
track: 7:00 A.M

7:00 A.M
type: MusicRecording
duration: PT3M27S
duration ms: 207000
explicit: false
by artist: ProdiG
by artist: Lai Kei
in album: Purple Heart
  type: MusicAlbum
  date published: 2021-06-05
genre: hong-kong-hip-hop
isrc code: QZTAT2124937
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T21:29:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02e8ece2e7eba0dbcfee4482abe03d15a26be20a9439fcee0f51275926d4d6ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAT2124937
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
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: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+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 0x02e8ece2e7eba0dbcfee4482abe03d15a26be20a9439fcee0f51275926d4d6ba. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZTAT2124937.
  date published: 2026-07-02T11:34:59Z
audio: 7:00 A.M
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 158.795
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.758
  additional property: Energy
    type: PropertyValue
    value: 0.735
  additional property: Speechiness
    type: PropertyValue
    value: 0.184
  additional property: Acousticness
    type: PropertyValue
    value: 0.179
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.412
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.688
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor