ISRC MX2831301949
Verified recording
MX2831301949 is “Polka la Humanidad” by Johann Rudolf Sawerthal,
registered on the CopyrightChains blockchain with CopyrightID
0x42a17e04c87132902fd928255336cfb4cb50cb59961b8bf95955655eb494a228 and independently timestamped
in Bitcoin block 960456 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX2831301949.
Recording identifiers
- ISRC
- MX2831301949
- Title
- Polka la Humanidad
- Artist
- Johann Rudolf Sawerthal
- CopyrightID (CopyrightChains transaction hash)
0x42a17e04c87132902fd928255336cfb4cb50cb59961b8bf95955655eb494a228
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:57+00:00
- Bitcoin block
- 960456
- Canonical record hash
sha256:1a34abef1a3a14ca2e5cc61272c7036156498bef8b44daa8f2f14ec1a2f40c02- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX2831301949
- Bitcoin block existence check
- https://blockstream.info/api/block/960456