ISRC GB5KW1602532
Verified recording
GB5KW1602532 is “We Used to Bach (We Used to Know / Bach Prelude C Major)” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x15f2a6f46cfabe1e4c949d760a12bf9164a2caa2a1726e4e0e49d3a830aa654c 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/GB5KW1602532.
Recording identifiers
- ISRC
- GB5KW1602532
- Title
- We Used to Bach (We Used to Know / Bach Prelude C Major)
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0x15f2a6f46cfabe1e4c949d760a12bf9164a2caa2a1726e4e0e49d3a830aa654c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:84fb6557c0894b01a1da5ea743a3f52c18db6557bf51d8cc17f22065725f5abc- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB5KW1602532
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: We Used to Bach (We Used to Know / Bach Prelude C Major) · Machine-readable JSON-LD