ISRC QM6DC1556246
Verified recording
QM6DC1556246 is “El 21” by Martin Castillo,
registered on the CopyrightChains blockchain with CopyrightID
0x012a11410a11f292852255e9de6ea5f01b579cfd10fd5cd8b1dea4b8947035a0 and independently timestamped
in Bitcoin block 956889 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1556246.
Recording identifiers
- ISRC
- QM6DC1556246
- Title
- El 21
- Artist
- Martin Castillo
- CopyrightID (CopyrightChains transaction hash)
0x012a11410a11f292852255e9de6ea5f01b579cfd10fd5cd8b1dea4b8947035a0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T06:56:49+00:00
- Bitcoin block
- 956889
- Canonical record hash
sha256:5cd2905fb8ae74751dfe4cd9b45751eee6d5a5b5f57c8d399d1df21393025463- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1556246
- Bitcoin block existence check
- https://blockstream.info/api/block/956889