ISRC QZTB42355158
Verified recording
QZTB42355158 is “Harder” by OTB Fastlane,
registered on the CopyrightChains blockchain with CopyrightID
0xd9bfa158c2a4735cda04434505f9b5dd2538fbdd2855f0f8b30f23d2eb9b0d97 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB42355158.
Recording identifiers
- ISRC
- QZTB42355158
- Title
- Harder
- Artist
- OTB Fastlane
- CopyrightID (CopyrightChains transaction hash)
0xd9bfa158c2a4735cda04434505f9b5dd2538fbdd2855f0f8b30f23d2eb9b0d97
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:5e01cfb4cf00912c96f6a52464f4b4ca6aa8882634e7527f79b57670ca3ba484- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB42355158
- Bitcoin block existence check
- https://blockstream.info/api/block/956302