ISRC NLA507509708
Verified recording
NLA507509708 is “Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x8ddc2f429a0f069826d5c75adfe5f05e996d130a163bbe6a7938a7f37a46a2ba 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/NLA507509708.
Recording identifiers
- ISRC
- NLA507509708
- Title
- Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0x8ddc2f429a0f069826d5c75adfe5f05e996d130a163bbe6a7938a7f37a46a2ba
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:b510d76ab08b7248492a9d88986eee5428d492cb265a8f5d32e85e2f4e7de8f0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507509708
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto · Machine-readable JSON-LD