ISRC QMBZ91556621
Verified recording
QMBZ91556621 is “No Sirds Uz Sirds” by Kārlis Būmeisters,
registered on the CopyrightChains blockchain with CopyrightID
0x18216b900eac8ed32cb3147ceca5de265e3ccc8b12b907b95839ade2104a4467 and independently timestamped
in Bitcoin block 960268 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91556621.
Recording identifiers
- ISRC
- QMBZ91556621
- Title
- No Sirds Uz Sirds
- Artist
- Kārlis Būmeisters
- CopyrightID (CopyrightChains transaction hash)
0x18216b900eac8ed32cb3147ceca5de265e3ccc8b12b907b95839ade2104a4467
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T14:53:07+00:00
- Bitcoin block
- 960268
- Canonical record hash
sha256:d7d5869d5e9eb05f8a2aa22b7ab701f30a58ffdb463ab15e8b07a091f5fcaf5f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91556621
- Bitcoin block existence check
- https://blockstream.info/api/block/960268