ISRC QZZ8A2433938
Verified recording
QZZ8A2433938 is “Harmony Focus Notes” by Productive Work,
registered on the CopyrightChains blockchain with CopyrightID
0xf2eca798a1006f2f46b798e4a4b5b74f9fbeb92257d230372f0b142ac37401fa and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ8A2433938.
Recording identifiers
- ISRC
- QZZ8A2433938
- Title
- Harmony Focus Notes
- Artist
- Productive Work
- CopyrightID (CopyrightChains transaction hash)
0xf2eca798a1006f2f46b798e4a4b5b74f9fbeb92257d230372f0b142ac37401fa
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:197bfdbf6da655a501b2a5ef7f32c367163cdcf8fea4ccf7dc3dfb34e3c7e906- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ8A2433938
- Bitcoin block existence check
- https://blockstream.info/api/block/957118