OpenTechnical

OT-2026-000082944

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, vented after set-down, on a tool changer

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-2026-000082944) never changes.

Identity and time

Publication numberOT-2026-000082944 · never reused
Internal UUID01a0ae97-8cca-7520-af75-279116162b01 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:22.827170Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000082944
StatusPUBLIC

Content hashes

Canonical textab8d23cbc86cbb0bf833e2764150a7e64a1ab068e2bb1cbfb1c2b1b1cb81346d
Markdown4bda331d95599173df9b521e47d3c44f3e6df7de9b065f6e76da313b2f634ba9
PDF
Publication page8b0bc12b9569e869d7da4feddfd6f2153857e1239292d378ce45f914fcb93c92
Manifestb3ef66f48727908d405640e54648c0703b33c983469e13708f1c500e5e397031

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
SignatureJlhxqMU6FepmB6g0mLz7QVlNgqoA/rkFjoiu9vERhP3hmGqsg33uk7qoAU4jvajaq3ay6U3u5cgFml1/QPa8Dg==
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

2026-09-17T09:58:38.400075ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082944
observed 8b0bc12b9569e869d7da4feddfd6f215...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:38.382316ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082944/manifest.json
observed b3ef66f48727908d405640e54648c070...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:38.365582ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082944/publication.md
observed 4bda331d95599173df9b521e47d3c44f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:38.347442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082944/publication.txt
observed ab8d23cbc86cbb0bf833e2764150a7e6...
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.