ISRC USUM71810817
Verified recording
USUM71810817 is “Do It Again” by Mack Brock,
registered on the CopyrightChains blockchain with CopyrightID
0xb1d6bed0f2858bc4332efb13b36bee477daf3e8557f4a70b140717d15dc0986d and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71810817.
Recording identifiers
- ISRC
- USUM71810817
- Title
- Do It Again
- Artist
- Mack Brock
- CopyrightID (CopyrightChains transaction hash)
0xb1d6bed0f2858bc4332efb13b36bee477daf3e8557f4a70b140717d15dc0986d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:c1505c72ff19fe0c480b1bbe836e6161e8df1a42d2ba6135ea6ddcc29f9ffa3a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71810817
- Bitcoin block existence check
- https://blockstream.info/api/block/953520