ISRC ITK601801910
Verified recording
ITK601801910 is “Zwillinge” by Karlheinz Stockhausen,
registered on the CopyrightChains blockchain with CopyrightID
0x61e50ab40f4eede8e7d247a2d85a7f61392d49fe847dfd8ee25727bf84b18db7 and independently timestamped
in Bitcoin block 960209 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK601801910.
Recording identifiers
- ISRC
- ITK601801910
- Title
- Zwillinge
- Artist
- Karlheinz Stockhausen
- CopyrightID (CopyrightChains transaction hash)
0x61e50ab40f4eede8e7d247a2d85a7f61392d49fe847dfd8ee25727bf84b18db7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T05:15:54+00:00
- Bitcoin block
- 960209
- Canonical record hash
sha256:a7d2a6b3f8c3a2447845e4648825b9df11e6460edafa1eb944b9754f83b1c11f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK601801910
- Bitcoin block existence check
- https://blockstream.info/api/block/960209