ISRC HKI199925419
Verified recording
HKI199925419 is “Fidelio, Op. 72, Act I: Nun sprecht, wie ging's? (Leonore, Rocco, Marzelline, Jaquino, Pizarro)” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x38687f0d4cf457ebb9240953c6df6a756e781876fe12ef91a5158449763da200 and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199925419.
Recording identifiers
- ISRC
- HKI199925419
- Title
- Fidelio, Op. 72, Act I: Nun sprecht, wie ging's? (Leonore, Rocco, Marzelline, Jaquino, Pizarro)
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x38687f0d4cf457ebb9240953c6df6a756e781876fe12ef91a5158449763da200
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:261235af0f6fd1ac837b6c1846b8549723f013d1d12ca3b44d80d7fd12da74f5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199925419
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: Fidelio, Op. 72, Act I: Nun sprecht, wie ging's? (Leonore, Rocco, Marzelline, Jaquino, Pizarro) · Machine-readable JSON-LD