ISRC NLA507708543
Verified recording
NLA507708543 is “Mazurka No. 45 in G Minor, Op. 67 No. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x556d31baeaa1de66b1e954f91a9c70efac5f584dac093294120dd859dca32a2e and independently timestamped
in Bitcoin block 960216 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507708543.
Recording identifiers
- ISRC
- NLA507708543
- Title
- Mazurka No. 45 in G Minor, Op. 67 No. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x556d31baeaa1de66b1e954f91a9c70efac5f584dac093294120dd859dca32a2e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T06:39:12+00:00
- Bitcoin block
- 960216
- Canonical record hash
sha256:0c795f6066e097182c98ec00934e74f4870b39163c0578c25630e87cf32c71c9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507708543
- Bitcoin block existence check
- https://blockstream.info/api/block/960216
Full record
Track page: Mazurka No. 45 in G Minor, Op. 67 No. 2 · Machine-readable JSON-LD