ISRC USBC10500385
Verified recording
USBC10500385 is “The Ballad of Sweeney Todd: "Attend the Tale of Sweeney Todd"” by Stephen Sondheim,
registered on the CopyrightChains blockchain with CopyrightID
0xb445dc969c06c9d041bcd7c47c24d6eec4e4ff262e0c3a1fb8d2bb1b3513ea0f 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/USBC10500385.
Recording identifiers
- ISRC
- USBC10500385
- Title
- The Ballad of Sweeney Todd: "Attend the Tale of Sweeney Todd"
- Artist
- Stephen Sondheim
- CopyrightID (CopyrightChains transaction hash)
0xb445dc969c06c9d041bcd7c47c24d6eec4e4ff262e0c3a1fb8d2bb1b3513ea0f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:bd8a4ef73a0e457cb620532eb345f796517d1a61ea83ceaa0b9dac44fe7dde62- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10500385
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: The Ballad of Sweeney Todd: "Attend the Tale of Sweeney Todd" · Machine-readable JSON-LD