ISRC GBF077740404
Verified recording
GBF077740404 is “Requiem in D minor, K.626: Tuba mirum (Sequenz)” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x308c8ccc67ec291ef9fac9e068199c6b9724357c642073070e8d48802723dc0d and independently timestamped
in Bitcoin block 960441 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077740404.
Recording identifiers
- ISRC
- GBF077740404
- Title
- Requiem in D minor, K.626: Tuba mirum (Sequenz)
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x308c8ccc67ec291ef9fac9e068199c6b9724357c642073070e8d48802723dc0d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T17:29:52+00:00
- Bitcoin block
- 960441
- Canonical record hash
sha256:e200aa7f2bf0ede5aa80b1df911cefa80349dc336c82185242d82540ea9fee27- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077740404
- Bitcoin block existence check
- https://blockstream.info/api/block/960441
Full record
Track page: Requiem in D minor, K.626: Tuba mirum (Sequenz) · Machine-readable JSON-LD