ISRC USL4R2128846
Verified recording
USL4R2128846 is “El 18” by Martin Marquez,
registered on the CopyrightChains blockchain with CopyrightID
0x416a1fae790e55df9ee2ad08f2bc08a0711877ef19f920f633143d6ac10d6e01 and independently timestamped
in Bitcoin block 960284 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R2128846.
Recording identifiers
- ISRC
- USL4R2128846
- Title
- El 18
- Artist
- Martin Marquez
- CopyrightID (CopyrightChains transaction hash)
0x416a1fae790e55df9ee2ad08f2bc08a0711877ef19f920f633143d6ac10d6e01
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T17:23:26+00:00
- Bitcoin block
- 960284
- Canonical record hash
sha256:1ef5e90992769aa58ff28f28ae990fb4d50641332d2cbb4783abe377f26c4c2e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R2128846
- Bitcoin block existence check
- https://blockstream.info/api/block/960284