ISRC QMZQ41640001
Verified recording
QMZQ41640001 is “Catuca” by Classmatic,
registered on the CopyrightChains blockchain with CopyrightID
0x19af6484cc49f2c23d1f5cad514f7387069b6e22e59c40f1860ae21fff52c061 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMZQ41640001.
Recording identifiers
- ISRC
- QMZQ41640001
- Title
- Catuca
- Artist
- Classmatic
- CopyrightID (CopyrightChains transaction hash)
0x19af6484cc49f2c23d1f5cad514f7387069b6e22e59c40f1860ae21fff52c061
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:380def866cf0b05b2e5e3efa911cbdc54adec587b824a4dff02b97ee8633c766- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMZQ41640001
- Bitcoin block existence check
- https://blockstream.info/api/block/956304