ISRC USSF19001109
Verified recording
USSF19001109 is “Heart in Sorrow” by Sonny Terry,
registered on the CopyrightChains blockchain with CopyrightID
0x42c4a9b3ea98d9cb8ed662e316172e822795c4cec2bfe1c325d7f2ad0798be11 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/USSF19001109.
Recording identifiers
- ISRC
- USSF19001109
- Title
- Heart in Sorrow
- Artist
- Sonny Terry
- CopyrightID (CopyrightChains transaction hash)
0x42c4a9b3ea98d9cb8ed662e316172e822795c4cec2bfe1c325d7f2ad0798be11
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:4b667c5e2a39d3aba4ff4c4099b8b54ad6bcd4f70a66d6a9769a37120bf9e88e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSF19001109
- Bitcoin block existence check
- https://blockstream.info/api/block/960448