ISRC NLA460914121
Verified recording
NLA460914121 is “XII. Contrapunctus XI a 4” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x825d4b63de08b38df9517626c2a5478bbe02079b6302c9d11ccefad428219926 and independently timestamped
in Bitcoin block 960478 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA460914121.
Recording identifiers
- ISRC
- NLA460914121
- Title
- XII. Contrapunctus XI a 4
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0x825d4b63de08b38df9517626c2a5478bbe02079b6302c9d11ccefad428219926
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T23:30:38+00:00
- Bitcoin block
- 960478
- Canonical record hash
sha256:56df62520a7120b264e3c23eb43a5ef58e90362acd77862bec0e10664dd3fce2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA460914121
- Bitcoin block existence check
- https://blockstream.info/api/block/960478
Full record
Track page: XII. Contrapunctus XI a 4 · Machine-readable JSON-LD