ISRC HK1391400004
Verified recording
HK1391400004 is “約定” by Albert Au,
registered on the CopyrightChains blockchain with CopyrightID
0xa9a8be3db55fe4f72ad3ae5b1ad5d9d1a05e1fc4140e3cb799dacce778fe32f7 and independently timestamped
in Bitcoin block 960448 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HK1391400004.
Recording identifiers
- ISRC
- HK1391400004
- Title
- 約定
- Artist
- Albert Au
- CopyrightID (CopyrightChains transaction hash)
0xa9a8be3db55fe4f72ad3ae5b1ad5d9d1a05e1fc4140e3cb799dacce778fe32f7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:0f73e8af6f19401f5c39b6193f7a41d6eef4d482a029f87e01639a278ef8ffef- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HK1391400004
- Bitcoin block existence check
- https://blockstream.info/api/block/960448