ISRC NLB151700206
Verified recording
NLB151700206 is “Piano Concerto No. 3 in C Minor, Op. 37: II. Largo” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0xcf64aa7c09fa8fe1221d8e11a65240e296ebd6658b25f1472c397181c31846da and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151700206.
Recording identifiers
- ISRC
- NLB151700206
- Title
- Piano Concerto No. 3 in C Minor, Op. 37: II. Largo
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0xcf64aa7c09fa8fe1221d8e11a65240e296ebd6658b25f1472c397181c31846da
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:525a0262e34625c722b4aca75c3e41d5105dac7b1f7e7d43dda09c673d2a8bd2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151700206
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Piano Concerto No. 3 in C Minor, Op. 37: II. Largo · Machine-readable JSON-LD