ISRC US4KV1000021
Verified recording
US4KV1000021 is “Nice Guys” by E-40,
registered on the CopyrightChains blockchain with CopyrightID
0x95c1f75acaf3876451ada156c2250e77d9d3db06d7eae9f281f77421087c0896 and independently timestamped
in Bitcoin block 956889 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4KV1000021.
Recording identifiers
- ISRC
- US4KV1000021
- Title
- Nice Guys
- Artist
- E-40
- CopyrightID (CopyrightChains transaction hash)
0x95c1f75acaf3876451ada156c2250e77d9d3db06d7eae9f281f77421087c0896
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T06:56:49+00:00
- Bitcoin block
- 956889
- Canonical record hash
sha256:31bcf7c0cd44dde1c22beac30d230fd74a402074fef72cee16c3505349bd38b4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4KV1000021
- Bitcoin block existence check
- https://blockstream.info/api/block/956889