ISRC QZW9L2470031
Verified recording
QZW9L2470031 is “Mar Calmo” by RR.Mp3,
registered on the CopyrightChains blockchain with CopyrightID
0x0cb2ac3f156fed4634640a945317d4d1d6cb3b639445c41febf7e968ae51613e and independently timestamped
in Bitcoin block 960276 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2470031.
Recording identifiers
- ISRC
- QZW9L2470031
- Title
- Mar Calmo
- Artist
- RR.Mp3
- CopyrightID (CopyrightChains transaction hash)
0x0cb2ac3f156fed4634640a945317d4d1d6cb3b639445c41febf7e968ae51613e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T16:01:17+00:00
- Bitcoin block
- 960276
- Canonical record hash
sha256:3445914117bf9ac2047cf79e74f57e98497c54c8309f9f712587bae022cb57c4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2470031
- Bitcoin block existence check
- https://blockstream.info/api/block/960276