ISRC GBBBA6761920
Verified recording
GBBBA6761920 is “Marsha's Mood - First Version” by John Mayall,
registered on the CopyrightChains blockchain with CopyrightID
0x1ac6c4cc30da26862f1e7c691f0262a7225ba84307835126a8967812eba49215 and independently timestamped
in Bitcoin block 960185 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA6761920.
Recording identifiers
- ISRC
- GBBBA6761920
- Title
- Marsha's Mood - First Version
- Artist
- John Mayall
- CopyrightID (CopyrightChains transaction hash)
0x1ac6c4cc30da26862f1e7c691f0262a7225ba84307835126a8967812eba49215
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T01:32:48+00:00
- Bitcoin block
- 960185
- Canonical record hash
sha256:41119ccdd475405bee3bf17020cd22e395b4fcaac21d6dc2f59e87b5fbe6b55c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA6761920
- Bitcoin block existence check
- https://blockstream.info/api/block/960185
Full record
Track page: Marsha's Mood - First Version · Machine-readable JSON-LD