ISRC USX761216216
Verified recording
USX761216216 is “Addio fiorito assil (from Madama Butterfly)” by Fritz Wunderlich,
registered on the CopyrightChains blockchain with CopyrightID
0x33e90b3757ab2ef1f6da82e618ddadd974763989bb76a4181ecee230f2fb9035 and independently timestamped
in Bitcoin block 960497 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761216216.
Recording identifiers
- ISRC
- USX761216216
- Title
- Addio fiorito assil (from Madama Butterfly)
- Artist
- Fritz Wunderlich
- CopyrightID (CopyrightChains transaction hash)
0x33e90b3757ab2ef1f6da82e618ddadd974763989bb76a4181ecee230f2fb9035
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T02:22:04+00:00
- Bitcoin block
- 960497
- Canonical record hash
sha256:3a56a515c4e2ac6d17b64724151209513240cf2b07c4e8348c7f355ef13ceae3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761216216
- Bitcoin block existence check
- https://blockstream.info/api/block/960497
Full record
Track page: Addio fiorito assil (from Madama Butterfly) · Machine-readable JSON-LD