ISRC GBF077440520
Verified recording
GBF077440520 is “Madama Butterfly, Act II: Si sa che aprir la parta” by Giacomo Puccini,
registered on the CopyrightChains blockchain with CopyrightID
0x40ac064c3a071c9a23a7fd61a93954cdd7a2c89fc83970b4ca945639b1e8c3f9 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/GBF077440520.
Recording identifiers
- ISRC
- GBF077440520
- Title
- Madama Butterfly, Act II: Si sa che aprir la parta
- Artist
- Giacomo Puccini
- CopyrightID (CopyrightChains transaction hash)
0x40ac064c3a071c9a23a7fd61a93954cdd7a2c89fc83970b4ca945639b1e8c3f9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:2c2b693708160e809b7c420aebba102762bfdcd378bcffb43a51a2590dddd31f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077440520
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Madama Butterfly, Act II: Si sa che aprir la parta · Machine-readable JSON-LD