ISRC CZA169401235
Verified recording
CZA169401235 is “Laut verkünde unsre Freude. Cantata for Two Tenors, Bass, Male Chorus and Orchestra in C Major, K. 623: I. Chor. Allegro” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x4aea4ed4a1d678b2e3ee9e335c2c07694b7a2378727d1fb56313e9b7221509e1 and independently timestamped
in Bitcoin block 960321 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169401235.
Recording identifiers
- ISRC
- CZA169401235
- Title
- Laut verkünde unsre Freude. Cantata for Two Tenors, Bass, Male Chorus and Orchestra in C Major, K. 623: I. Chor. Allegro
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x4aea4ed4a1d678b2e3ee9e335c2c07694b7a2378727d1fb56313e9b7221509e1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T22:27:30+00:00
- Bitcoin block
- 960321
- Canonical record hash
sha256:47e27adf85ab24abaf42f76d3ee55ce1dcbeb094d9afe8cc09ae7c2cc3458c16- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169401235
- Bitcoin block existence check
- https://blockstream.info/api/block/960321
Full record
Track page: Laut verkünde unsre Freude. Cantata for Two Tenors, Bass, Male Chorus and Orchestra in C Major, K. 623: I. Chor. Allegro · Machine-readable JSON-LD