ISRC DEFG21723721
Verified recording
DEFG21723721 is “24 Préludes, Op. 28: No. 21 in B-Flat Major” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x36e0bcaa2c9a1d900459c4d74709977abc896046f5130e07e5e08ba5835c540f and independently timestamped
in Bitcoin block 960473 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFG21723721.
Recording identifiers
- ISRC
- DEFG21723721
- Title
- 24 Préludes, Op. 28: No. 21 in B-Flat Major
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x36e0bcaa2c9a1d900459c4d74709977abc896046f5130e07e5e08ba5835c540f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T22:27:44+00:00
- Bitcoin block
- 960473
- Canonical record hash
sha256:3b46d102ef51a519df0d239f655e9bf52792d3b80c03d05703c37df72c2e8085- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFG21723721
- Bitcoin block existence check
- https://blockstream.info/api/block/960473
Full record
Track page: 24 Préludes, Op. 28: No. 21 in B-Flat Major · Machine-readable JSON-LD