ISRC USTJ20306103
Verified recording
USTJ20306103 is “Practice Twice” by Sam Prekop,
registered on the CopyrightChains blockchain with CopyrightID
0xa5034fc56989af050496e5f3244e5606d228b13c175a8df27f55c336a14f819e 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/USTJ20306103.
Recording identifiers
- ISRC
- USTJ20306103
- Title
- Practice Twice
- Artist
- Sam Prekop
- CopyrightID (CopyrightChains transaction hash)
0xa5034fc56989af050496e5f3244e5606d228b13c175a8df27f55c336a14f819e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:87f8c4487d398dae0164c66610873031f63cc65ed6e7fe0d11c7b6aa718b52eb- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTJ20306103
- Bitcoin block existence check
- https://blockstream.info/api/block/960138