ISRC GBQSK0901711
Verified recording
GBQSK0901711 is “Big Muff” by John Martyn,
registered on the CopyrightChains blockchain with CopyrightID
0x9c75490af9fb3caacf8b7d1837dfffa71cff7aca6a3c181c4eb7dcd6f3daacda and independently timestamped
in Bitcoin block 960106 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQSK0901711.
Recording identifiers
- ISRC
- GBQSK0901711
- Title
- Big Muff
- Artist
- John Martyn
- CopyrightID (CopyrightChains transaction hash)
0x9c75490af9fb3caacf8b7d1837dfffa71cff7aca6a3c181c4eb7dcd6f3daacda
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T12:41:21+00:00
- Bitcoin block
- 960106
- Canonical record hash
sha256:c15041ec667132df58742541ccb4784929555cfce615d3ea26195bd7cc5fe357- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQSK0901711
- Bitcoin block existence check
- https://blockstream.info/api/block/960106