ISRC USSM10213315
Verified recording
USSM10213315 is “With So Little to Be Sure Of - Demo” by Stephen Sondheim,
registered on the CopyrightChains blockchain with CopyrightID
0x8b743534d445fb56d24b2828ad0fc80818c1cd6d546365d276a7f82c5e47db0a and independently timestamped
in Bitcoin block 960448 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10213315.
Recording identifiers
- ISRC
- USSM10213315
- Title
- With So Little to Be Sure Of - Demo
- Artist
- Stephen Sondheim
- CopyrightID (CopyrightChains transaction hash)
0x8b743534d445fb56d24b2828ad0fc80818c1cd6d546365d276a7f82c5e47db0a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:9768a40921d4332dcd40fb91422586b0c72c257d3dca0f48faa2427c7f65dc2a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10213315
- Bitcoin block existence check
- https://blockstream.info/api/block/960448
Full record
Track page: With So Little to Be Sure Of - Demo · Machine-readable JSON-LD