ISRC QMA8B1900223
Verified recording
QMA8B1900223 is “Don't Let Your Guard Down” by Nils Lofgren,
registered on the CopyrightChains blockchain with CopyrightID
0x4fbb86445659be2e9c6ad16c9883a8033fa52336ac5894aa6fb1e153ee11a92a and independently timestamped
in Bitcoin block 960463 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMA8B1900223.
Recording identifiers
- ISRC
- QMA8B1900223
- Title
- Don't Let Your Guard Down
- Artist
- Nils Lofgren
- CopyrightID (CopyrightChains transaction hash)
0x4fbb86445659be2e9c6ad16c9883a8033fa52336ac5894aa6fb1e153ee11a92a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T20:42:35+00:00
- Bitcoin block
- 960463
- Canonical record hash
sha256:2e3e02830b30abfec8e7be32e056f48f952ec91a91770011b3f3209f829218e5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMA8B1900223
- Bitcoin block existence check
- https://blockstream.info/api/block/960463
Full record
Track page: Don't Let Your Guard Down · Machine-readable JSON-LD