ISRC NLB151800274
Verified recording
NLB151800274 is “Harpsichord Concerto No. 4 in A Major, BWV 1055: II. Larghetto” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0xf1649b564baf1dcf271e32dc67d20a7fb6b9eef018e41c7658cf887157b82ad5 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/NLB151800274.
Recording identifiers
- ISRC
- NLB151800274
- Title
- Harpsichord Concerto No. 4 in A Major, BWV 1055: II. Larghetto
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0xf1649b564baf1dcf271e32dc67d20a7fb6b9eef018e41c7658cf887157b82ad5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:38d63389b5c470fbb88fb6ef22bd368dc94ff8cceb75a9070cc6b90c67095109- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151800274
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Harpsichord Concerto No. 4 in A Major, BWV 1055: II. Larghetto · Machine-readable JSON-LD