ISRC US4KV1100026
Verified recording
US4KV1100026 is “Concrete” by E-40,
registered on the CopyrightChains blockchain with CopyrightID
0x9592744e9155947905a1b30a2b1a493698ca266e1770763f09295ae8da2d65c2 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4KV1100026.
Recording identifiers
- ISRC
- US4KV1100026
- Title
- Concrete
- Artist
- E-40
- CopyrightID (CopyrightChains transaction hash)
0x9592744e9155947905a1b30a2b1a493698ca266e1770763f09295ae8da2d65c2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:fb6c2e8f2484a988ad7184737b314dae92ee9046cce937c2153d23098132c4d1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4KV1100026
- Bitcoin block existence check
- https://blockstream.info/api/block/956302