ISRC US83Z2023865
Verified recording
US83Z2023865 is “Willie Was a Poor Guy” by Matija,
registered on the CopyrightChains blockchain with CopyrightID
0xf51b766b7e861adb9c04adfc897a0be148f7ae999fb1fd530094f3c07f3db42a and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2023865.
Recording identifiers
- ISRC
- US83Z2023865
- Title
- Willie Was a Poor Guy
- Artist
- Matija
- CopyrightID (CopyrightChains transaction hash)
0xf51b766b7e861adb9c04adfc897a0be148f7ae999fb1fd530094f3c07f3db42a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:bfc7a2933d4d8a010fd625564022d9abdf834b50ac0f25d4648e11d738f0485c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2023865
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: Willie Was a Poor Guy · Machine-readable JSON-LD