ISRC DEF057430604
Verified recording
DEF057430604 is “24 Preludes, Op. 28: No. 4 in E Minor. Largo - Recorded 1974” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x6a774d7ea19182379bebe134adef9b0c383a9d9cf1c6d068d5fd1638c6c91adf and independently timestamped
in Bitcoin block 960160 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057430604.
Recording identifiers
- ISRC
- DEF057430604
- Title
- 24 Preludes, Op. 28: No. 4 in E Minor. Largo - Recorded 1974
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x6a774d7ea19182379bebe134adef9b0c383a9d9cf1c6d068d5fd1638c6c91adf
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T22:48:59+00:00
- Bitcoin block
- 960160
- Canonical record hash
sha256:3799380e07dd66ac4857b147d9ca3724e56d2670573e51c9cfb422222c98f18e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057430604
- Bitcoin block existence check
- https://blockstream.info/api/block/960160
Full record
Track page: 24 Preludes, Op. 28: No. 4 in E Minor. Largo - Recorded 1974 · Machine-readable JSON-LD