ISRC USJJX1500019
Verified recording
USJJX1500019 is “Half a Cookie” by Jeff Oster,
registered on the CopyrightChains blockchain with CopyrightID
0xbd3140dc50388f15cf59e8d0168e58c73a286ae4e094f925f1f8e30b90956034 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJJX1500019.
Recording identifiers
- ISRC
- USJJX1500019
- Title
- Half a Cookie
- Artist
- Jeff Oster
- CopyrightID (CopyrightChains transaction hash)
0xbd3140dc50388f15cf59e8d0168e58c73a286ae4e094f925f1f8e30b90956034
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:ea403c586bfea8affd1073471170fe40268b2a5edab62fe4c497ec16d7ad369a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJJX1500019
- Bitcoin block existence check
- https://blockstream.info/api/block/956304