ISRC QZK6Q1984456
Verified recording
QZK6Q1984456 is “The Hobby Swapping Problem” by Headhaunter,
registered on the CopyrightChains blockchain with CopyrightID
0x1c22b5915459931c94071928d8bb6908663e59c1e4365279c380540adba6df20 and independently timestamped
in Bitcoin block 953515 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6Q1984456.
Recording identifiers
- ISRC
- QZK6Q1984456
- Title
- The Hobby Swapping Problem
- Artist
- Headhaunter
- CopyrightID (CopyrightChains transaction hash)
0x1c22b5915459931c94071928d8bb6908663e59c1e4365279c380540adba6df20
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:53:06+00:00
- Bitcoin block
- 953515
- Canonical record hash
sha256:bcb47d7c2ade3d263acaf7b70a1f7532787c40e7b8f87bbc814a150a08acd912- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6Q1984456
- Bitcoin block existence check
- https://blockstream.info/api/block/953515
Full record
Track page: The Hobby Swapping Problem · Machine-readable JSON-LD