ISRC HKA610400523
Verified recording
HKA610400523 is “昨天” by Sam Hui,
registered on the CopyrightChains blockchain with CopyrightID
0xb9ac32f93410ca1e389e3fc970ff9512446a76a65b2458b35442b2120d2780b3 and independently timestamped
in Bitcoin block 960435 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610400523.
Recording identifiers
- ISRC
- HKA610400523
- Title
- 昨天
- Artist
- Sam Hui
- CopyrightID (CopyrightChains transaction hash)
0xb9ac32f93410ca1e389e3fc970ff9512446a76a65b2458b35442b2120d2780b3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T16:33:26+00:00
- Bitcoin block
- 960435
- Canonical record hash
sha256:bb63f70c61d357ac07c32038a9e262bd04a5ce7196567519db91a679be40d973- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKA610400523
- Bitcoin block existence check
- https://blockstream.info/api/block/960435