ISRC NLUM71000128
Verified recording
NLUM71000128 is “8 Variations for Piano 4 Hands on a Theme by Count Waldstein, WoO 67” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x659da27f06752eb80e4fa6df24e5484e95b5625e40edd0316ca0b67d93db1025 and independently timestamped
in Bitcoin block 960494 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLUM71000128.
Recording identifiers
- ISRC
- NLUM71000128
- Title
- 8 Variations for Piano 4 Hands on a Theme by Count Waldstein, WoO 67
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x659da27f06752eb80e4fa6df24e5484e95b5625e40edd0316ca0b67d93db1025
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T01:44:32+00:00
- Bitcoin block
- 960494
- Canonical record hash
sha256:55604e6e0ee6c78a14baa888503084ed0c0eb4193e1eca3313ff1d1a16bb0c19- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLUM71000128
- Bitcoin block existence check
- https://blockstream.info/api/block/960494
Full record
Track page: 8 Variations for Piano 4 Hands on a Theme by Count Waldstein, WoO 67 · Machine-readable JSON-LD