ISRC GBUM71801981
Verified recording
GBUM71801981 is “It Don't Matter - Live At The New Theatre Oxford, UK / 1979” by Def Leppard,
registered on the CopyrightChains blockchain with CopyrightID
0xe2de8ef2c35c1e3fcffb53761b9bf6e72ac43a5214445793d9ea2d0077a7b858 and independently timestamped
in Bitcoin block 960210 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71801981.
Recording identifiers
- ISRC
- GBUM71801981
- Title
- It Don't Matter - Live At The New Theatre Oxford, UK / 1979
- Artist
- Def Leppard
- CopyrightID (CopyrightChains transaction hash)
0xe2de8ef2c35c1e3fcffb53761b9bf6e72ac43a5214445793d9ea2d0077a7b858
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T05:21:45+00:00
- Bitcoin block
- 960210
- Canonical record hash
sha256:55fa67827cc547a56220dba084b78c15f3f0198581ba8e0d87a4e104cc127cf0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71801981
- Bitcoin block existence check
- https://blockstream.info/api/block/960210
Full record
Track page: It Don't Matter - Live At The New Theatre Oxford, UK / 1979 · Machine-readable JSON-LD