ISRC USAT21700385
Verified recording
USAT21700385 is “Heartstrings” by 1991,
registered on the CopyrightChains blockchain with CopyrightID
0xc71c45ff6959078f7c8ba22a91fc39daf4ede8fe7f3cd05f1bd729163fcadeeb and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21700385.
Recording identifiers
- ISRC
- USAT21700385
- Title
- Heartstrings
- Artist
- 1991
- CopyrightID (CopyrightChains transaction hash)
0xc71c45ff6959078f7c8ba22a91fc39daf4ede8fe7f3cd05f1bd729163fcadeeb
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:68e93c09e43b98a5fb56c0b57e1b476dbe4d65da419846b6795db94d311c30b1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21700385
- Bitcoin block existence check
- https://blockstream.info/api/block/956302