ISRC DEFG22335667
Verified recording
DEFG22335667 is “Nun komm' der Heiden Heiland, BWV 599 (Arr. for Piano 4 Hands by György Kurtág)” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x23433d1a4cfc4b4f63bbd3ad1a691440904df4107e003af92bad490aea663df5 and independently timestamped
in Bitcoin block 960418 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFG22335667.
Recording identifiers
- ISRC
- DEFG22335667
- Title
- Nun komm' der Heiden Heiland, BWV 599 (Arr. for Piano 4 Hands by György Kurtág)
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0x23433d1a4cfc4b4f63bbd3ad1a691440904df4107e003af92bad490aea663df5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:20:15+00:00
- Bitcoin block
- 960418
- Canonical record hash
sha256:f9e501a478bde480ce31db4c43be5e0c41a2c12809d3cb13084f6697b31cfbed- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFG22335667
- Bitcoin block existence check
- https://blockstream.info/api/block/960418
Full record
Track page: Nun komm' der Heiden Heiland, BWV 599 (Arr. for Piano 4 Hands by György Kurtág) · Machine-readable JSON-LD