ISRC USBC19704905
Verified recording
USBC19704905 is “Madama Butterfly: Act II: Humming Chorus” by Giacomo Puccini,
registered on the CopyrightChains blockchain with CopyrightID
0x6f35cd39850e71c0db971624942aafce3f220cd1c757ee9b94d91be9f2ac731a and independently timestamped
in Bitcoin block 960352 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19704905.
Recording identifiers
- ISRC
- USBC19704905
- Title
- Madama Butterfly: Act II: Humming Chorus
- Artist
- Giacomo Puccini
- CopyrightID (CopyrightChains transaction hash)
0x6f35cd39850e71c0db971624942aafce3f220cd1c757ee9b94d91be9f2ac731a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T05:48:30+00:00
- Bitcoin block
- 960352
- Canonical record hash
sha256:431304983f5976961229cc0d8e849d1d013e813ac19fb9b5f99641b58866b02c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19704905
- Bitcoin block existence check
- https://blockstream.info/api/block/960352
Full record
Track page: Madama Butterfly: Act II: Humming Chorus · Machine-readable JSON-LD