ISRC NLA507708534
Verified recording
NLA507708534 is “Mazurka No. 34 in C Major, Op. 56 No. 2. Vivace” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x751fea075d877b2f785a9050fc817b3b8964befb5b0e3a1813c794b6865f1f4b and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507708534.
Recording identifiers
- ISRC
- NLA507708534
- Title
- Mazurka No. 34 in C Major, Op. 56 No. 2. Vivace
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x751fea075d877b2f785a9050fc817b3b8964befb5b0e3a1813c794b6865f1f4b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:3a6851726b9cbe8e89d5e89bed63af47fb4c80951c4b777aac7def87a8f3257f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507708534
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Mazurka No. 34 in C Major, Op. 56 No. 2. Vivace · Machine-readable JSON-LD