ISRC NLA506100864
Verified recording
NLA506100864 is “12 Etudes, Op. 10: No. 4. in C sharp minor” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x1fdf4e9b2509f66759a45a7eeed6e90bdea225aa9bd8c0781a5968dae2223275 and independently timestamped
in Bitcoin block 960506 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506100864.
Recording identifiers
- ISRC
- NLA506100864
- Title
- 12 Etudes, Op. 10: No. 4. in C sharp minor
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x1fdf4e9b2509f66759a45a7eeed6e90bdea225aa9bd8c0781a5968dae2223275
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T03:50:58+00:00
- Bitcoin block
- 960506
- Canonical record hash
sha256:6d103c5a128f71ca78277c3cd251e6bd1c4909ce159eca4eef1daa59d51fdaef- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506100864
- Bitcoin block existence check
- https://blockstream.info/api/block/960506
Full record
Track page: 12 Etudes, Op. 10: No. 4. in C sharp minor · Machine-readable JSON-LD