ISRC GBF077740405
Verified recording
GBF077740405 is “Requiem in D minor, K.626: Rex tremendae (Sequenz)” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x4e65ee04ec8a17bf28cb2ef756d376d13d6bfb35f1284b638976e1576d7efbe0 and independently timestamped
in Bitcoin block 960240 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077740405.
Recording identifiers
- ISRC
- GBF077740405
- Title
- Requiem in D minor, K.626: Rex tremendae (Sequenz)
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x4e65ee04ec8a17bf28cb2ef756d376d13d6bfb35f1284b638976e1576d7efbe0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T09:57:33+00:00
- Bitcoin block
- 960240
- Canonical record hash
sha256:864e08009663a74e80a36722fc88b12d4169732a4add187d82e2a1e6acaffa49- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077740405
- Bitcoin block existence check
- https://blockstream.info/api/block/960240
Full record
Track page: Requiem in D minor, K.626: Rex tremendae (Sequenz) · Machine-readable JSON-LD