ISRC USUMC0000074
Verified recording
USUMC0000074 is “Soliloquy” by Oscar Hammerstein II,
registered on the CopyrightChains blockchain with CopyrightID
0x68abcb97d193fd1f4b035c6af4d5f9864c6ad144df957e665d01f9abd272e483 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/USUMC0000074.
Recording identifiers
- ISRC
- USUMC0000074
- Title
- Soliloquy
- Artist
- Oscar Hammerstein II
- CopyrightID (CopyrightChains transaction hash)
0x68abcb97d193fd1f4b035c6af4d5f9864c6ad144df957e665d01f9abd272e483
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:1c225bd685a274550292daa0ba0b43ac0aba1811a261ac96ef8d20fd9340ab19- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUMC0000074
- Bitcoin block existence check
- https://blockstream.info/api/block/960138