ISRC US7850810052
Verified recording
US7850810052 is “3 Madrigals: No. 3. Sigh No More, Ladies, Sigh No More” by Emma Lou Diemer,
registered on the CopyrightChains blockchain with CopyrightID
0x15d803c4998def83b8b40b4e11f14f21afb3c7b7b81894e182cab88a0c69b374 and independently timestamped
in Bitcoin block 960296 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7850810052.
Recording identifiers
- ISRC
- US7850810052
- Title
- 3 Madrigals: No. 3. Sigh No More, Ladies, Sigh No More
- Artist
- Emma Lou Diemer
- CopyrightID (CopyrightChains transaction hash)
0x15d803c4998def83b8b40b4e11f14f21afb3c7b7b81894e182cab88a0c69b374
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T19:11:09+00:00
- Bitcoin block
- 960296
- Canonical record hash
sha256:3bd821a03ef3708d44d30a9626c06358f5eda3ccc3ba42a4273accbf0c527913- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7850810052
- Bitcoin block existence check
- https://blockstream.info/api/block/960296
Full record
Track page: 3 Madrigals: No. 3. Sigh No More, Ladies, Sigh No More · Machine-readable JSON-LD