ISRC QZ8BZ2000285
Verified recording
QZ8BZ2000285 is “Double Bubble” by Volker Bertelmann,
registered on the CopyrightChains blockchain with CopyrightID
0xcb2d51421c9a5931b2ee090d63700dc99cdff903b096fff9f28d939b7100563a and independently timestamped
in Bitcoin block 960095 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8BZ2000285.
Recording identifiers
- ISRC
- QZ8BZ2000285
- Title
- Double Bubble
- Artist
- Volker Bertelmann
- CopyrightID (CopyrightChains transaction hash)
0xcb2d51421c9a5931b2ee090d63700dc99cdff903b096fff9f28d939b7100563a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T11:07:37+00:00
- Bitcoin block
- 960095
- Canonical record hash
sha256:311a2f8dfda77a46f1601948bea398eed2c90250cb1414f73c30a5342a549d2e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8BZ2000285
- Bitcoin block existence check
- https://blockstream.info/api/block/960095