ISRC NLA309400135
Verified recording
NLA309400135 is “The Second Waltz, Op. 99a” by Dmitri Shostakovich,
registered on the CopyrightChains blockchain with CopyrightID
0xafebb3456cfcdd055680d1578873ffcb609730fa297d61ecd52b358cdd30e3f1 and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA309400135.
Recording identifiers
- ISRC
- NLA309400135
- Title
- The Second Waltz, Op. 99a
- Artist
- Dmitri Shostakovich
- CopyrightID (CopyrightChains transaction hash)
0xafebb3456cfcdd055680d1578873ffcb609730fa297d61ecd52b358cdd30e3f1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:7ef4928ab513deda9e5e11127913653d92a127ac653d513db7b898537fd45f09- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA309400135
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: The Second Waltz, Op. 99a · Machine-readable JSON-LD