ISRC USSM12300680
Verified recording
USSM12300680 is “A German Requiem, Op. 45: I. Blessed are they that mourn” by Johannes Brahms,
registered on the CopyrightChains blockchain with CopyrightID
0xb0bbe2feed123a1514b351fc472cb5f836bc039b6a37287f9ee6914b56e1ee9c and independently timestamped
in Bitcoin block 960264 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12300680.
Recording identifiers
- ISRC
- USSM12300680
- Title
- A German Requiem, Op. 45: I. Blessed are they that mourn
- Artist
- Johannes Brahms
- CopyrightID (CopyrightChains transaction hash)
0xb0bbe2feed123a1514b351fc472cb5f836bc039b6a37287f9ee6914b56e1ee9c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T14:36:16+00:00
- Bitcoin block
- 960264
- Canonical record hash
sha256:330d36faff50f59cb1c9a44d1c8e63be42ce493091f240a944210287cf025da5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12300680
- Bitcoin block existence check
- https://blockstream.info/api/block/960264
Full record
Track page: A German Requiem, Op. 45: I. Blessed are they that mourn · Machine-readable JSON-LD