ISRC USSM12003989
Verified recording
USSM12003989 is “Vier ernste Gesänge: O Tod, wie bitter bist du, Op. 121/3” by Johannes Brahms,
registered on the CopyrightChains blockchain with CopyrightID
0x2cf4327efc3e405b3a93a02b8f47c3504e4b4835073d43f11308ec5562474ba7 and independently timestamped
in Bitcoin block 956889 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12003989.
Recording identifiers
- ISRC
- USSM12003989
- Title
- Vier ernste Gesänge: O Tod, wie bitter bist du, Op. 121/3
- Artist
- Johannes Brahms
- CopyrightID (CopyrightChains transaction hash)
0x2cf4327efc3e405b3a93a02b8f47c3504e4b4835073d43f11308ec5562474ba7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T06:56:49+00:00
- Bitcoin block
- 956889
- Canonical record hash
sha256:fe03cf3121378511fa6698c6f342ad6620549321daaf39434d836a325decc987- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12003989
- Bitcoin block existence check
- https://blockstream.info/api/block/956889
Full record
Track page: Vier ernste Gesänge: O Tod, wie bitter bist du, Op. 121/3 · Machine-readable JSON-LD