ISRC USL4R2128843
Verified recording
USL4R2128843 is “En Usa” by Martin Marquez,
registered on the CopyrightChains blockchain with CopyrightID
0x0ce95d55d57c3cd6c3af43f93ba2f07204975daab26b6a12811d3c24728ed0ce and independently timestamped
in Bitcoin block 960337 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R2128843.
Recording identifiers
- ISRC
- USL4R2128843
- Title
- En Usa
- Artist
- Martin Marquez
- CopyrightID (CopyrightChains transaction hash)
0x0ce95d55d57c3cd6c3af43f93ba2f07204975daab26b6a12811d3c24728ed0ce
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:51:48+00:00
- Bitcoin block
- 960337
- Canonical record hash
sha256:448927d2c62485ca278b69d398b004466c84ed30e84caa1de00e85ea10c80e97- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R2128843
- Bitcoin block existence check
- https://blockstream.info/api/block/960337