ISRC USSM11607961
Verified recording
USSM11607961 is “The Book Launch” by David Hirschfelder,
registered on the CopyrightChains blockchain with CopyrightID
0x525b4f1b2df7f253a016085caeb52d3d5ccb1a010091134118b325ac8aa8a21f and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11607961.
Recording identifiers
- ISRC
- USSM11607961
- Title
- The Book Launch
- Artist
- David Hirschfelder
- CopyrightID (CopyrightChains transaction hash)
0x525b4f1b2df7f253a016085caeb52d3d5ccb1a010091134118b325ac8aa8a21f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:f42565fc0014e958976c0b9e0cf71b2a17efbadd1d1fdcff60e76ffcc519a3d6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11607961
- Bitcoin block existence check
- https://blockstream.info/api/block/957118