ISRC ITX921002621
Verified recording
ITX921002621 is “4 Impromptus, Op. 90, D. 899: No. 1 in C Minor” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x742552f1524275811821007aafe9867e26c9986096718c69596ba13eeac14f61 and independently timestamped
in Bitcoin block 960150 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITX921002621.
Recording identifiers
- ISRC
- ITX921002621
- Title
- 4 Impromptus, Op. 90, D. 899: No. 1 in C Minor
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x742552f1524275811821007aafe9867e26c9986096718c69596ba13eeac14f61
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:51:49+00:00
- Bitcoin block
- 960150
- Canonical record hash
sha256:e1ac4f4a9c4d16b90e75b73aca798f792137412f32f793f4205db00efacca21a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITX921002621
- Bitcoin block existence check
- https://blockstream.info/api/block/960150
Full record
Track page: 4 Impromptus, Op. 90, D. 899: No. 1 in C Minor · Machine-readable JSON-LD