ISRC QZRP52157898
Verified recording
QZRP52157898 is “Worst That Ever Was” by Keller Williams,
registered on the CopyrightChains blockchain with CopyrightID
0x9f7039b3d413fd7f9710600429dfb7cb3ffb844ddde5afa8c20e60619391b1d9 and independently timestamped
in Bitcoin block 960403 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52157898.
Recording identifiers
- ISRC
- QZRP52157898
- Title
- Worst That Ever Was
- Artist
- Keller Williams
- CopyrightID (CopyrightChains transaction hash)
0x9f7039b3d413fd7f9710600429dfb7cb3ffb844ddde5afa8c20e60619391b1d9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T13:04:34+00:00
- Bitcoin block
- 960403
- Canonical record hash
sha256:a4434e301020ad810fccff886081fbd732da6af853aba1427006bc764aa63989- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52157898
- Bitcoin block existence check
- https://blockstream.info/api/block/960403