ISRC NLA508014709
Verified recording
NLA508014709 is “Waltz No. 18 in E-Flat Major. Sostenuto, KK IVb/10” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x38200a0c3a9cf2ee776586f7d3abd22b595f731913271f0fae905a474718b007 and independently timestamped
in Bitcoin block 960264 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508014709.
Recording identifiers
- ISRC
- NLA508014709
- Title
- Waltz No. 18 in E-Flat Major. Sostenuto, KK IVb/10
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x38200a0c3a9cf2ee776586f7d3abd22b595f731913271f0fae905a474718b007
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T14:36:16+00:00
- Bitcoin block
- 960264
- Canonical record hash
sha256:db25591f638bda5de7bccf6b55cbbff2325ed9a4002d1056bf0e4a91367a9a09- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508014709
- Bitcoin block existence check
- https://blockstream.info/api/block/960264
Full record
Track page: Waltz No. 18 in E-Flat Major. Sostenuto, KK IVb/10 · Machine-readable JSON-LD