ISRC NLA509004008
Verified recording
NLA509004008 is “Clarinet Concert No. 2 in E flat, Op. 74: 3. Alla Polacca” by Carl Maria von Weber,
registered on the CopyrightChains blockchain with CopyrightID
0xc1eb3f49c1a26829a1226874604246c9a8f5d31d3049036abba33043b4827cd5 and independently timestamped
in Bitcoin block 960337 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509004008.
Recording identifiers
- ISRC
- NLA509004008
- Title
- Clarinet Concert No. 2 in E flat, Op. 74: 3. Alla Polacca
- Artist
- Carl Maria von Weber
- CopyrightID (CopyrightChains transaction hash)
0xc1eb3f49c1a26829a1226874604246c9a8f5d31d3049036abba33043b4827cd5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:51:48+00:00
- Bitcoin block
- 960337
- Canonical record hash
sha256:d36bcb8b615c3e9550b52f564123f82db6ea0d92828adaf5c91afbfac318c4be- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509004008
- Bitcoin block existence check
- https://blockstream.info/api/block/960337
Full record
Track page: Clarinet Concert No. 2 in E flat, Op. 74: 3. Alla Polacca · Machine-readable JSON-LD