ISRC CHE272503006

Verified recording

CHE272503006 is “Duo concertant in B Major, Op. 3 No. 1: III. Rondo” by August Fryderyk Duranowski, registered on the CopyrightChains blockchain with CopyrightID 0x02d4eab39931997417baea24a5c23cbf897065226766ffbd9c7a905a1cecf9f5 and independently timestamped in Bitcoin block 960138 on 2026-07-29. Verify the canonical record, hash, and Bitcoin attestation at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CHE272503006.

Recording identifiers

ISRC
CHE272503006
Title
Duo concertant in B Major, Op. 3 No. 1: III. Rondo
Artist
August Fryderyk Duranowski
CopyrightID (CopyrightChains transaction hash)
0x02d4eab39931997417baea24a5c23cbf897065226766ffbd9c7a905a1cecf9f5

Dual-chain proof evidence

Bitcoin-attested timestamp
2026-07-29T19:35:34+00:00
Bitcoin block
960138
Canonical record hash
sha256:7d0f8d557d5af36fb657f3f32d15a246c16d8c365a9e165cc340102d4b6aea8c
Verification API (6-check server-side result)
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CHE272503006
Bitcoin block existence check
https://blockstream.info/api/block/960138

Full record

Track page: Duo concertant in B Major, Op. 3 No. 1: III. Rondo · Machine-readable JSON-LD