ISRC DEB262300233
Verified recording
DEB262300233 is “Piano Concerto for the Left Hand No. 1: III. Var. 3” by Josef Labor,
registered on the CopyrightChains blockchain with CopyrightID
0xf0c0bbb8bf109ee4fa007b41f98ff8dc5bdc23dd8b12a13904c63204a7e5d81c and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB262300233.
Recording identifiers
- ISRC
- DEB262300233
- Title
- Piano Concerto for the Left Hand No. 1: III. Var. 3
- Artist
- Josef Labor
- CopyrightID (CopyrightChains transaction hash)
0xf0c0bbb8bf109ee4fa007b41f98ff8dc5bdc23dd8b12a13904c63204a7e5d81c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:5f2fb6373735187f8fe97b2522d8fe9f89ee30f6304b514a38ebe5f59da522f2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB262300233
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Piano Concerto for the Left Hand No. 1: III. Var. 3 · Machine-readable JSON-LD