OpenTechnical

OT-2026-000090641

Publication integrity record

Foam pad vacuum gripper, two 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-2026-000090641) never changes.

Identity and time

Publication numberOT-2026-000090641 · never reused
Internal UUID01a0ae9c-7f30-7707-bda0-d9df0e55b358 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090641
StatusPUBLIC

Content hashes

Canonical text2f5db6ee293c7d5b12c7f2fb9446f19b8315168038c5cfcfbe994bb08e61f71d
Markdownc7111ea6eff2528478e76f24c6daf273853620e40ee6e189701dda1ed56dc58e
PDF
Publication pagee5bda8a9942f6bfd0fa816346a172d3ab0881a0128e7538fdd065557b23915ff
Manifestfb1795805327d671f78273eea3b37ba977d331eb209215cff1c5335f7307ae26

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
SignatureeBTFOe2jZW9FbwJ07s1L31Y/4xVe6bEjWOeEKn0ZT4SYCRm8zzIx2+OfQhcptj69e6c/NsYEUUIDFrO+wvvcCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:44:49.686517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090641
observed e5bda8a9942f6bfd0fa816346a172d3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:49.669761ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090641/manifest.json
observed fb1795805327d671f78273eea3b37ba9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:49.651561ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090641/publication.md
observed c7111ea6eff2528478e76f24c6daf273...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:49.633755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090641/publication.txt
observed 2f5db6ee293c7d5b12c7f2fb9446f19b...
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.