ISRC USHM21972952
Verified recording
USHM21972952 is “El Big Rob” by Grupo Sigma,
registered on the CopyrightChains blockchain with CopyrightID
0x0cdf082083410d1c23c9361541b60bd23e1299ba3b05bfd1e5b15cf7f6f1347b and independently timestamped
in Bitcoin block 960448 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21972952.
Recording identifiers
- ISRC
- USHM21972952
- Title
- El Big Rob
- Artist
- Grupo Sigma
- CopyrightID (CopyrightChains transaction hash)
0x0cdf082083410d1c23c9361541b60bd23e1299ba3b05bfd1e5b15cf7f6f1347b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:022c0fceea9f804df51d6a7316b413825ccaa9bfebccb6bbf5f1c0438f572392- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21972952
- Bitcoin block existence check
- https://blockstream.info/api/block/960448