ISRC QZW9K2341068
Verified recording
QZW9K2341068 is “Lobachevsky” by Tom Lehrer,
registered on the CopyrightChains blockchain with CopyrightID
0x1a6bfa68ff295ea6d23c16289e77e54449ddfc72c2b3781da22d6997287033eb and independently timestamped
in Bitcoin block 960150 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341068.
Recording identifiers
- ISRC
- QZW9K2341068
- Title
- Lobachevsky
- Artist
- Tom Lehrer
- CopyrightID (CopyrightChains transaction hash)
0x1a6bfa68ff295ea6d23c16289e77e54449ddfc72c2b3781da22d6997287033eb
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:51:49+00:00
- Bitcoin block
- 960150
- Canonical record hash
sha256:b6666dbea21c2b2acd6a67dd88ec0156c26266979d2945953101fe68c1ab67e6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341068
- Bitcoin block existence check
- https://blockstream.info/api/block/960150