ISRC USUM71903235
Verified recording
USUM71903235 is “Plain Letters” by Madison Cunningham,
registered on the CopyrightChains blockchain with CopyrightID
0xa2fbe9c0f7a51a316089f59d4e757d7b9e27f4bddcc12f540e0258521cfc7767 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/USUM71903235.
Recording identifiers
- ISRC
- USUM71903235
- Title
- Plain Letters
- Artist
- Madison Cunningham
- CopyrightID (CopyrightChains transaction hash)
0xa2fbe9c0f7a51a316089f59d4e757d7b9e27f4bddcc12f540e0258521cfc7767
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:a5fb849d170562ec2409d0076cb800e9437e7e0e7d2458a3a815a0af9eb4d907- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71903235
- Bitcoin block existence check
- https://blockstream.info/api/block/953520