ISRC US87H8810437
Verified recording
US87H8810437 is “17'-23'” by Karlheinz Stockhausen,
registered on the CopyrightChains blockchain with CopyrightID
0x799012434367829efadcf493f7c6395ca3814a2fedb8168b1325da551d38074b and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US87H8810437.
Recording identifiers
- ISRC
- US87H8810437
- Title
- 17'-23'
- Artist
- Karlheinz Stockhausen
- CopyrightID (CopyrightChains transaction hash)
0x799012434367829efadcf493f7c6395ca3814a2fedb8168b1325da551d38074b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:1925a03d26b4645ddd153f40ed41ec872cf6d81c4b962bc76b6123fe3a4d6cde- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US87H8810437
- Bitcoin block existence check
- https://blockstream.info/api/block/957118