ISRC QZFZ71993204
Verified recording
QZFZ71993204 is “Hard 2 Kill” by Graymatter,
registered on the CopyrightChains blockchain with CopyrightID
0x9304fe414f972fc3c9f3b162b73ae983618b08fa91f274a037e93d9d8d507767 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ71993204.
Recording identifiers
- ISRC
- QZFZ71993204
- Title
- Hard 2 Kill
- Artist
- Graymatter
- CopyrightID (CopyrightChains transaction hash)
0x9304fe414f972fc3c9f3b162b73ae983618b08fa91f274a037e93d9d8d507767
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:ac85a7d1abb4d1929951784ac27f48587d4176629b368bd86ab60553804a00c1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ71993204
- Bitcoin block existence check
- https://blockstream.info/api/block/957118