ISRC NLB151100737
Verified recording
NLB151100737 is “Ich hatte viel Bekümmernis BWV 21: Seufzer, Tränen, Kummer, Not” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x37ac90486306c98e6a1e6b0e5a22827b2bc14839b18f2ed1204307ac9fc66417 and independently timestamped
in Bitcoin block 960254 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151100737.
Recording identifiers
- ISRC
- NLB151100737
- Title
- Ich hatte viel Bekümmernis BWV 21: Seufzer, Tränen, Kummer, Not
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0x37ac90486306c98e6a1e6b0e5a22827b2bc14839b18f2ed1204307ac9fc66417
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:06:10+00:00
- Bitcoin block
- 960254
- Canonical record hash
sha256:0042c9448b816527d812b779a36570ad0d394a4bfb8a6ca81a2bf3f846a73445- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151100737
- Bitcoin block existence check
- https://blockstream.info/api/block/960254
Full record
Track page: Ich hatte viel Bekümmernis BWV 21: Seufzer, Tränen, Kummer, Not · Machine-readable JSON-LD