ISRC NLA508014708
Verified recording
NLA508014708 is “Waltz No. 19 in A Minor, KK IVb/11” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x7ccf47c3cd0346d946ff1f5b09a81b80dae5265d48a3fbaf74a4f5d177c044f3 and independently timestamped
in Bitcoin block 956889 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508014708.
Recording identifiers
- ISRC
- NLA508014708
- Title
- Waltz No. 19 in A Minor, KK IVb/11
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x7ccf47c3cd0346d946ff1f5b09a81b80dae5265d48a3fbaf74a4f5d177c044f3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T06:56:49+00:00
- Bitcoin block
- 956889
- Canonical record hash
sha256:cd9b4072e48a06f581bdf59d5d66c2c402cbad67137094c0870c75575880dcf3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508014708
- Bitcoin block existence check
- https://blockstream.info/api/block/956889
Full record
Track page: Waltz No. 19 in A Minor, KK IVb/11 · Machine-readable JSON-LD