ISRC NLA507708528
Verified recording
NLA507708528 is “Mazurka No. 28 in B Op. 41 No. 3” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xaaa095ca31912b505efe4b304d26c8798459069d6457c45aac140531806710a2 and independently timestamped
in Bitcoin block 960247 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507708528.
Recording identifiers
- ISRC
- NLA507708528
- Title
- Mazurka No. 28 in B Op. 41 No. 3
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xaaa095ca31912b505efe4b304d26c8798459069d6457c45aac140531806710a2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T10:42:33+00:00
- Bitcoin block
- 960247
- Canonical record hash
sha256:4494d0fa9f8199d4ea7f86e9593ce26162b12e024b9a9a170af3b1f185617ef3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507708528
- Bitcoin block existence check
- https://blockstream.info/api/block/960247
Full record
Track page: Mazurka No. 28 in B Op. 41 No. 3 · Machine-readable JSON-LD