ISRC QZZ972408029
Verified recording
QZZ972408029 is “El Mastuerzo” by Efrain Toledo y Sus Calentanos,
registered on the CopyrightChains blockchain with CopyrightID
0xcf2099d83ce4b4cc061092fd908d62ecab3d8f50ede3e4b26d0a2544ef23cb5e and independently timestamped
in Bitcoin block 960500 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ972408029.
Recording identifiers
- ISRC
- QZZ972408029
- Title
- El Mastuerzo
- Artist
- Efrain Toledo y Sus Calentanos
- CopyrightID (CopyrightChains transaction hash)
0xcf2099d83ce4b4cc061092fd908d62ecab3d8f50ede3e4b26d0a2544ef23cb5e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T03:13:03+00:00
- Bitcoin block
- 960500
- Canonical record hash
sha256:31902c1c21ba154afde9142d9ddd1cf44c4fb88d65d025682327ed6ed2b28b79- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ972408029
- Bitcoin block existence check
- https://blockstream.info/api/block/960500