ISRC QZW9K2341070
Verified recording
QZW9K2341070 is “Mlf Lullaby” by Tom Lehrer,
registered on the CopyrightChains blockchain with CopyrightID
0x37debe0f2fff7fa82b0500f479f708b0ca9ce000db2cf27ca947d58bcf4b7631 and independently timestamped
in Bitcoin block 960284 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341070.
Recording identifiers
- ISRC
- QZW9K2341070
- Title
- Mlf Lullaby
- Artist
- Tom Lehrer
- CopyrightID (CopyrightChains transaction hash)
0x37debe0f2fff7fa82b0500f479f708b0ca9ce000db2cf27ca947d58bcf4b7631
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T17:23:26+00:00
- Bitcoin block
- 960284
- Canonical record hash
sha256:1e95223579269f40e2c830a7356fa3893b2fe3873308bc3edceebb67a567fc1a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341070
- Bitcoin block existence check
- https://blockstream.info/api/block/960284