ISRC GBUM71900822
Verified recording
GBUM71900822 is “Requiem, KV 626: 6f. Lacrimosa (arr. piano)” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0xc38efbb1130e5a67188b0806a8c751b2734722401006cf59b9c57a96bf1708ee and independently timestamped
in Bitcoin block 957043 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71900822.
Recording identifiers
- ISRC
- GBUM71900822
- Title
- Requiem, KV 626: 6f. Lacrimosa (arr. piano)
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0xc38efbb1130e5a67188b0806a8c751b2734722401006cf59b9c57a96bf1708ee
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T13:52:39+00:00
- Bitcoin block
- 957043
- Canonical record hash
sha256:6911c23aaa9fd0e9bda6459f62cdc63c1187971c0400ae9f48e74add5ae3123b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71900822
- Bitcoin block existence check
- https://blockstream.info/api/block/957043
Full record
Track page: Requiem, KV 626: 6f. Lacrimosa (arr. piano) · Machine-readable JSON-LD