ISRC USSM19504268
Verified recording
USSM19504268 is “Seufzer, Tränen, Kummer, Not from Ich hatte viel Bekümmernis, BWV 21 - Voice” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0xeec2bf156b2c05dd49fb6261c347b325813e2fe7e25c6b3c455bcd01ba32a18a and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19504268.
Recording identifiers
- ISRC
- USSM19504268
- Title
- Seufzer, Tränen, Kummer, Not from Ich hatte viel Bekümmernis, BWV 21 - Voice
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0xeec2bf156b2c05dd49fb6261c347b325813e2fe7e25c6b3c455bcd01ba32a18a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:269f58fa3c2a7e2dcb6867cc4286c253ee45c960b9d36f8f775a6db19dedca68- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19504268
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Seufzer, Tränen, Kummer, Not from Ich hatte viel Bekümmernis, BWV 21 - Voice · Machine-readable JSON-LD