ISRC FR3KD1507457
Verified recording
FR3KD1507457 is “Nocturnes, Op. 27: No. 2 in D-Flat Major, Lento sostenuto” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xb6ef95b53ea0dd9e3229d70f35b7232b49f27ac5a79bcfd5b2103604f462c4d7 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/FR3KD1507457.
Recording identifiers
- ISRC
- FR3KD1507457
- Title
- Nocturnes, Op. 27: No. 2 in D-Flat Major, Lento sostenuto
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xb6ef95b53ea0dd9e3229d70f35b7232b49f27ac5a79bcfd5b2103604f462c4d7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T22:27:44+00:00
- Bitcoin block
- 960473
- Canonical record hash
sha256:a203002a6487851a70abc1ee89385b124f713221973e5b1d38451f769b2ea25e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR3KD1507457
- Bitcoin block existence check
- https://blockstream.info/api/block/960473
Full record
Track page: Nocturnes, Op. 27: No. 2 in D-Flat Major, Lento sostenuto · Machine-readable JSON-LD