ISRC QMKRW1900031
Verified recording
QMKRW1900031 is “Cold Hard World - Live at The Vic, Chicago, IL - 10/20/17” by Daniel Johnston,
registered on the CopyrightChains blockchain with CopyrightID
0xcb9bd3df5e357c3fea1a97be060f21a2f1303b740afbe499f251901eb6675f0b and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMKRW1900031.
Recording identifiers
- ISRC
- QMKRW1900031
- Title
- Cold Hard World - Live at The Vic, Chicago, IL - 10/20/17
- Artist
- Daniel Johnston
- CopyrightID (CopyrightChains transaction hash)
0xcb9bd3df5e357c3fea1a97be060f21a2f1303b740afbe499f251901eb6675f0b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:c4db63c4e9fa83a8fbcc54cc2c345aba250343bbf28203b3f1c0c1d0e6c5a28a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMKRW1900031
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: Cold Hard World - Live at The Vic, Chicago, IL - 10/20/17 · Machine-readable JSON-LD