ISRC QMKQ51300416
Verified recording
QMKQ51300416 is “When I Lost You” by Bing Crosby,
registered on the CopyrightChains blockchain with CopyrightID
0x9fd63e48a78fc0bb1ba220e29ce5ec4c38955e98855bce4f9bde0c4ee3d87094 and independently timestamped
in Bitcoin block 960241 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMKQ51300416.
Recording identifiers
- ISRC
- QMKQ51300416
- Title
- When I Lost You
- Artist
- Bing Crosby
- CopyrightID (CopyrightChains transaction hash)
0x9fd63e48a78fc0bb1ba220e29ce5ec4c38955e98855bce4f9bde0c4ee3d87094
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T09:58:01+00:00
- Bitcoin block
- 960241
- Canonical record hash
sha256:0d743d6c2f322e488e2af71bcdf4b3626fcb2ec846d97e66c9ea9607fb63ed0c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMKQ51300416
- Bitcoin block existence check
- https://blockstream.info/api/block/960241