ISRC QM4TW1524450
Verified recording
QM4TW1524450 is “Invention in Bb Major BWV 885” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x38826cd88d008fceb96879402eb852edad1b7fda6be18b871c554ef2c293c088 and independently timestamped
in Bitcoin block 960441 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1524450.
Recording identifiers
- ISRC
- QM4TW1524450
- Title
- Invention in Bb Major BWV 885
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0x38826cd88d008fceb96879402eb852edad1b7fda6be18b871c554ef2c293c088
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T17:29:52+00:00
- Bitcoin block
- 960441
- Canonical record hash
sha256:d3f8d1c899475780396d405e2786351ec64769a7e8245c4182ee34ba5b3c69a0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1524450
- Bitcoin block existence check
- https://blockstream.info/api/block/960441
Full record
Track page: Invention in Bb Major BWV 885 · Machine-readable JSON-LD