ISRC NLA507708551
Verified recording
NLA507708551 is “Mazurka No. 42 In A Minor (à Emile Gaillard)” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x9efb5d07c6d7e96b6905d9e5cf0403d91214170b575c70bee653408738ce896c and independently timestamped
in Bitcoin block 960327 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507708551.
Recording identifiers
- ISRC
- NLA507708551
- Title
- Mazurka No. 42 In A Minor (à Emile Gaillard)
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x9efb5d07c6d7e96b6905d9e5cf0403d91214170b575c70bee653408738ce896c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T00:26:26+00:00
- Bitcoin block
- 960327
- Canonical record hash
sha256:77f8edd9f63d7993211ff499e6e9a67a5d2cf5c51af754dd7e7576a14b6cfef4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507708551
- Bitcoin block existence check
- https://blockstream.info/api/block/960327
Full record
Track page: Mazurka No. 42 In A Minor (à Emile Gaillard) · Machine-readable JSON-LD