ISRC USV291400445
Verified recording
USV291400445 is “Hard to Say I'm Sorry - Piano Instrumental” by Attila Fias,
registered on the CopyrightChains blockchain with CopyrightID
0xf6d3bedcdfc235d43acdccfd7aa5b8bbdadebd780f9d321c4ff05930fc8fa8a2 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/USV291400445.
Recording identifiers
- ISRC
- USV291400445
- Title
- Hard to Say I'm Sorry - Piano Instrumental
- Artist
- Attila Fias
- CopyrightID (CopyrightChains transaction hash)
0xf6d3bedcdfc235d43acdccfd7aa5b8bbdadebd780f9d321c4ff05930fc8fa8a2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:69e03d11eb0af3fabef6a7c4051870291c42435c6556224f4771fc198e5234b4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV291400445
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: Hard to Say I'm Sorry - Piano Instrumental · Machine-readable JSON-LD