ISRC QZZ8A2433954
Verified recording
QZZ8A2433954 is “Work Rhythmic Harmony” by Productive Work,
registered on the CopyrightChains blockchain with CopyrightID
0xe0990ebda3d80950fe1488776dbe1657439563db8203b0b7d3e38fc3df008ec6 and independently timestamped
in Bitcoin block 960427 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ8A2433954.
Recording identifiers
- ISRC
- QZZ8A2433954
- Title
- Work Rhythmic Harmony
- Artist
- Productive Work
- CopyrightID (CopyrightChains transaction hash)
0xe0990ebda3d80950fe1488776dbe1657439563db8203b0b7d3e38fc3df008ec6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:59:18+00:00
- Bitcoin block
- 960427
- Canonical record hash
sha256:cab3342433795cce688b5cd6640237652cb40dba5bd014491a028f15f44e73e3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ8A2433954
- Bitcoin block existence check
- https://blockstream.info/api/block/960427
Full record
Track page: Work Rhythmic Harmony · Machine-readable JSON-LD