ISRC GBAYC2100372
Verified recording
GBAYC2100372 is “Zelenka: Laetatus sum, ZWV 90: I. Laetatus sum. Allegro assai” by Jan Dismas Zelenka,
registered on the CopyrightChains blockchain with CopyrightID
0x8e1e7ed1c99a4b207c8f3b9ae6019d4cb47fcb4813dd2ea2687bb1d21aa2d69b and independently timestamped
in Bitcoin block 956889 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2100372.
Recording identifiers
- ISRC
- GBAYC2100372
- Title
- Zelenka: Laetatus sum, ZWV 90: I. Laetatus sum. Allegro assai
- Artist
- Jan Dismas Zelenka
- CopyrightID (CopyrightChains transaction hash)
0x8e1e7ed1c99a4b207c8f3b9ae6019d4cb47fcb4813dd2ea2687bb1d21aa2d69b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T06:56:49+00:00
- Bitcoin block
- 956889
- Canonical record hash
sha256:4b661c26c3f201181e15db02a8a93f61fd93a4e956c42229f9d03badde15e148- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2100372
- Bitcoin block existence check
- https://blockstream.info/api/block/956889
Full record
Track page: Zelenka: Laetatus sum, ZWV 90: I. Laetatus sum. Allegro assai · Machine-readable JSON-LD