ISRC QZFZ72424472
Verified recording
QZFZ72424472 is “404” by Maciej Spons,
registered on the CopyrightChains blockchain with CopyrightID
0x3958fa3447eb99f71b8cb058d0f8f0e91d339e2145f806f5a636178cad249ead and independently timestamped
in Bitcoin block 960448 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ72424472.
Recording identifiers
- ISRC
- QZFZ72424472
- Title
- 404
- Artist
- Maciej Spons
- CopyrightID (CopyrightChains transaction hash)
0x3958fa3447eb99f71b8cb058d0f8f0e91d339e2145f806f5a636178cad249ead
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:9b230266ddffd951ef1608bbfb87b98fc02e1ef2a68f77df6c2ce703f8d6ff90- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ72424472
- Bitcoin block existence check
- https://blockstream.info/api/block/960448