ISRC USBC10500361
Verified recording
USBC10500361 is “The Ballad of Sweeney Todd: "Lift Your Razor High, Sweeney!"” by Stephen Sondheim,
registered on the CopyrightChains blockchain with CopyrightID
0xc69eb6a8ded9f2ab3d230bf30b72091da474f73d776f6d71e2935124a0c07110 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/USBC10500361.
Recording identifiers
- ISRC
- USBC10500361
- Title
- The Ballad of Sweeney Todd: "Lift Your Razor High, Sweeney!"
- Artist
- Stephen Sondheim
- CopyrightID (CopyrightChains transaction hash)
0xc69eb6a8ded9f2ab3d230bf30b72091da474f73d776f6d71e2935124a0c07110
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:2010f21159c1fc372564d658e246e4f5048736d5afd6b57f620d8ca83e32695b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10500361
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: The Ballad of Sweeney Todd: "Lift Your Razor High, Sweeney!" · Machine-readable JSON-LD