ISRC NLA508101912
Verified recording
NLA508101912 is “Waltz No. 12 in F minor/A flat, Op. 70 No. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xe8114d1528f2b5f6b03d877a135c762220f7938cd83b4e055e801c3431699c57 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508101912.
Recording identifiers
- ISRC
- NLA508101912
- Title
- Waltz No. 12 in F minor/A flat, Op. 70 No. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xe8114d1528f2b5f6b03d877a135c762220f7938cd83b4e055e801c3431699c57
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:f5d42920a41094fc745cdf37f6d27e690c4d457ad472bb97b8742287bdeb859a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508101912
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Waltz No. 12 in F minor/A flat, Op. 70 No. 2 · Machine-readable JSON-LD