ISRC DEF057430609
Verified recording
DEF057430609 is “24 Preludes, Op. 28: No. 9 in E Major. Largo - Recorded 1974” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x1c8b24305e877e42b664bf7306d9faef8bdee62e2839a1bd7f94898e5ef43bff and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057430609.
Recording identifiers
- ISRC
- DEF057430609
- Title
- 24 Preludes, Op. 28: No. 9 in E Major. Largo - Recorded 1974
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x1c8b24305e877e42b664bf7306d9faef8bdee62e2839a1bd7f94898e5ef43bff
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:e469804853015666bbc275daaab31ef64ec732c4e6ff672e5e2ceee29e97d038- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057430609
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: 24 Preludes, Op. 28: No. 9 in E Major. Largo - Recorded 1974 · Machine-readable JSON-LD