OpenTechnical

OT-2026-000100251

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, pump fed, pressure sensor per zone, sustained blow-off before set-down

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000100251) never changes.

Identity and time

Publication numberOT-2026-000100251 · never reused
Internal UUID01a0aea3-3053-770c-baa0-3a2042ff8ff8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:05.469356Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000100251
StatusPUBLIC

Content hashes

Canonical texta6d197625e65561489b2e0722841c216399fb625f3149f700a618714d69b76d8
Markdown5100616045273a528c73f2e0b2a990d3c0cc6558424bf0d4fb90138847e38cdd
PDF
Publication pagec57e9dc46ef96900506d3666c75b0ccceb202f7c3e934161ff86e94c4337ad6a
Manifest4c50cfc703aacdb08e794ca61aab437a2278676fd0ed72541aec0ac2e9b66000

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureUM1n7tuN26X07nAnR0BeX6CTF/FFxNx6Dp5xipb4Uj11UwBTQb79xPSqDh7IJUVinGWwXbzf9LCA+wmNbDVwAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:30:03.166581ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100251
observed c57e9dc46ef96900506d3666c75b0ccc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:03.150606ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100251/manifest.json
observed 4c50cfc703aacdb08e794ca61aab437a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:03.132678ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100251/publication.md
observed 5100616045273a528c73f2e0b2a990d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:03.117301ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100251/publication.txt
observed a6d197625e65561489b2e0722841c216...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:28:32.674229ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100251
observed c57e9dc46ef96900506d3666c75b0ccc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:28:32.656946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100251/manifest.json
observed 4c50cfc703aacdb08e794ca61aab437a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:28:32.638956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100251/publication.md
observed 5100616045273a528c73f2e0b2a990d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:28:32.621438ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100251/publication.txt
observed a6d197625e65561489b2e0722841c216...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.