ISRC USAT21404828
Verified recording
USAT21404828 is “Sick Again - Early Version” by Led Zeppelin,
registered on the CopyrightChains blockchain with CopyrightID
0x96446874abddbcea7c0d3a05acc2f869a9c6bd7f82402f79cf5fa9c50b7769ef and independently timestamped
in Bitcoin block 953515 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21404828.
Recording identifiers
- ISRC
- USAT21404828
- Title
- Sick Again - Early Version
- Artist
- Led Zeppelin
- CopyrightID (CopyrightChains transaction hash)
0x96446874abddbcea7c0d3a05acc2f869a9c6bd7f82402f79cf5fa9c50b7769ef
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:53:06+00:00
- Bitcoin block
- 953515
- Canonical record hash
sha256:f4ae2626101dbef6f8d1f060cd20901c9431d7abdddd4dfda44b9413ebf5eec2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21404828
- Bitcoin block existence check
- https://blockstream.info/api/block/953515
Full record
Track page: Sick Again - Early Version · Machine-readable JSON-LD