ISRC GBF077540111
Verified recording
GBF077540111 is “10 Preludes, Op. 23: No. 10 in G-Flat Major (Largo)” by Sergei Rachmaninoff,
registered on the CopyrightChains blockchain with CopyrightID
0x447ec0e1e22510e46ee1be2a3073cbf9fcbc3ad9022f04320279d831498a81a4 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077540111.
Recording identifiers
- ISRC
- GBF077540111
- Title
- 10 Preludes, Op. 23: No. 10 in G-Flat Major (Largo)
- Artist
- Sergei Rachmaninoff
- CopyrightID (CopyrightChains transaction hash)
0x447ec0e1e22510e46ee1be2a3073cbf9fcbc3ad9022f04320279d831498a81a4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:1a1fbf1687184b41dc0a260d14461b54627a9c901432a9da0bd04bde8c6610e2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077540111
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: 10 Preludes, Op. 23: No. 10 in G-Flat Major (Largo) · Machine-readable JSON-LD