ISRC QM3DF2251529
Verified recording
QM3DF2251529 is “Hammerhead” by MxRKxS,
registered on the CopyrightChains blockchain with CopyrightID
0x16a3fd7aa6729cc6e5eac354a9994591f7e6e9e32fd5722bd452784e5e4e6c63 and independently timestamped
in Bitcoin block 960203 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2251529.
Recording identifiers
- ISRC
- QM3DF2251529
- Title
- Hammerhead
- Artist
- MxRKxS
- CopyrightID (CopyrightChains transaction hash)
0x16a3fd7aa6729cc6e5eac354a9994591f7e6e9e32fd5722bd452784e5e4e6c63
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T03:35:13+00:00
- Bitcoin block
- 960203
- Canonical record hash
sha256:6004ef3481fc9a5d54deb885677999fcaf1044a6b0f1ff382b2f7ec0b0a1f2d9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2251529
- Bitcoin block existence check
- https://blockstream.info/api/block/960203