ISRC NLA506100365
Verified recording
NLA506100365 is “Voices of Spring, Waltz, Op. 410” by Johann Strauss II,
registered on the CopyrightChains blockchain with CopyrightID
0x73e7d5c340bf85e12025a6f75421fa52390f7e3ff30d413cd50a7398a9cdba81 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506100365.
Recording identifiers
- ISRC
- NLA506100365
- Title
- Voices of Spring, Waltz, Op. 410
- Artist
- Johann Strauss II
- CopyrightID (CopyrightChains transaction hash)
0x73e7d5c340bf85e12025a6f75421fa52390f7e3ff30d413cd50a7398a9cdba81
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:ef3cf35fe940eadeb202a2b8667b9c4d06301c002dd6d57566ce736dadcec883- Verification API (seven-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506100365
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Voices of Spring, Waltz, Op. 410 · Machine-readable JSON-LD