ISRC DEF055900630
Verified recording
DEF055900630 is “10 Preludes, Op. 23: No. 2 Maestoso In B Flat Major” by Sergei Rachmaninoff,
registered on the CopyrightChains blockchain with CopyrightID
0x98439030e0e5190ed50840ad4b1b3e02ae8e27da6da934f061c7e0eeb32f9624 and independently timestamped
in Bitcoin block 960418 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055900630.
Recording identifiers
- ISRC
- DEF055900630
- Title
- 10 Preludes, Op. 23: No. 2 Maestoso In B Flat Major
- Artist
- Sergei Rachmaninoff
- CopyrightID (CopyrightChains transaction hash)
0x98439030e0e5190ed50840ad4b1b3e02ae8e27da6da934f061c7e0eeb32f9624
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:20:15+00:00
- Bitcoin block
- 960418
- Canonical record hash
sha256:80f85009c4e4d64113e7d20a60b57b196259dbd559b1b317c4933cc28b84de28- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055900630
- Bitcoin block existence check
- https://blockstream.info/api/block/960418
Full record
Track page: 10 Preludes, Op. 23: No. 2 Maestoso In B Flat Major · Machine-readable JSON-LD