ISRC QM4TW1524448
Verified recording
QM4TW1524448 is “Invention in A Major BWV 883” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x0e060f0dbd4dd295f56ef547c2d69bdb0b7eb03c1fda37e45c168b50deb69a79 and independently timestamped
in Bitcoin block 960448 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1524448.
Recording identifiers
- ISRC
- QM4TW1524448
- Title
- Invention in A Major BWV 883
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0x0e060f0dbd4dd295f56ef547c2d69bdb0b7eb03c1fda37e45c168b50deb69a79
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:4befb65965d9e6503138f6d65400d0c1537a95d8406357e69b43ccad185c66c8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1524448
- Bitcoin block existence check
- https://blockstream.info/api/block/960448
Full record
Track page: Invention in A Major BWV 883 · Machine-readable JSON-LD