ISRC HKI199925506
Verified recording
HKI199925506 is “Fidelio, Op. 72, Act II: Quartet: Er sterbe! (Pizarro, Florestan, Leonore, Rocco)” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x52d02555823dbfc4ed438535e68771a506aca2c09fa6e22a4287f2484e4810d0 and independently timestamped
in Bitcoin block 957061 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199925506.
Recording identifiers
- ISRC
- HKI199925506
- Title
- Fidelio, Op. 72, Act II: Quartet: Er sterbe! (Pizarro, Florestan, Leonore, Rocco)
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x52d02555823dbfc4ed438535e68771a506aca2c09fa6e22a4287f2484e4810d0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T16:07:00+00:00
- Bitcoin block
- 957061
- Canonical record hash
sha256:ea1fb1da0efd3d64f8dde4f71236d3a03dd188848b3c83ccc86045ad370edf24- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199925506
- Bitcoin block existence check
- https://blockstream.info/api/block/957061
Full record
Track page: Fidelio, Op. 72, Act II: Quartet: Er sterbe! (Pizarro, Florestan, Leonore, Rocco) · Machine-readable JSON-LD