ISRC NLE421805627
Verified recording
NLE421805627 is “Madama Butterfly, SC 74, Act II: Coro a bocca chiusa (Humming Chorus)” by Giacomo Puccini,
registered on the CopyrightChains blockchain with CopyrightID
0x417218d6b00c61faabde774223070068413c66fb80f267e6196ba6f6618139da 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/NLE421805627.
Recording identifiers
- ISRC
- NLE421805627
- Title
- Madama Butterfly, SC 74, Act II: Coro a bocca chiusa (Humming Chorus)
- Artist
- Giacomo Puccini
- CopyrightID (CopyrightChains transaction hash)
0x417218d6b00c61faabde774223070068413c66fb80f267e6196ba6f6618139da
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:687ba0be686e6c596e4e1052237dde009830f0273bdd7f26904209835ba7c7de- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421805627
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Madama Butterfly, SC 74, Act II: Coro a bocca chiusa (Humming Chorus) · Machine-readable JSON-LD