ISRC FR9W15900165
Verified recording
FR9W15900165 is “Macbeth, Act I Scene 5: No. 4b. Cavatina, "Vieni! t'affretta!" (Lady Macbeth) [Recorded in Hamburg, 1959]” by Maria Callas,
registered on the CopyrightChains blockchain with CopyrightID
0x21e4a4bbbbd30a164333d2e74fd33fd714aafc966fa65a3a85e3d5087984285d and independently timestamped
in Bitcoin block 960309 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W15900165.
Recording identifiers
- ISRC
- FR9W15900165
- Title
- Macbeth, Act I Scene 5: No. 4b. Cavatina, "Vieni! t'affretta!" (Lady Macbeth) [Recorded in Hamburg, 1959]
- Artist
- Maria Callas
- CopyrightID (CopyrightChains transaction hash)
0x21e4a4bbbbd30a164333d2e74fd33fd714aafc966fa65a3a85e3d5087984285d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T20:35:49+00:00
- Bitcoin block
- 960309
- Canonical record hash
sha256:8cef6ac7013955bcf042807629b603a405ebae0544b264515c47d88c3eaa0d12- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W15900165
- Bitcoin block existence check
- https://blockstream.info/api/block/960309
Full record
Track page: Macbeth, Act I Scene 5: No. 4b. Cavatina, "Vieni! t'affretta!" (Lady Macbeth) [Recorded in Hamburg, 1959] · Machine-readable JSON-LD