ISRC US23K0400293
Verified recording
US23K0400293 is “empty sky 1” by Fourcolor,
registered on the CopyrightChains blockchain with CopyrightID
0xe4acb017316e84d0d2f6ec7c1a5c4c75fa4c50f08373ac12dc833dda7168b7dd and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US23K0400293.
Recording identifiers
- ISRC
- US23K0400293
- Title
- empty sky 1
- Artist
- Fourcolor
- CopyrightID (CopyrightChains transaction hash)
0xe4acb017316e84d0d2f6ec7c1a5c4c75fa4c50f08373ac12dc833dda7168b7dd
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:c8272d024b0d7b2472c2f831748a8a6072c6b49d79ae776ee8e8e5835fac842c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US23K0400293
- Bitcoin block existence check
- https://blockstream.info/api/block/957118