OpenTechnical

OT-2026-000082946

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-2026-000082946) never changes.

Identity and time

Publication numberOT-2026-000082946 · never reused
Internal UUID01a0ae97-8cca-719a-9eaf-47364ac9d1f9 · 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-2026-000082946
StatusPUBLIC

Content hashes

Canonical textc41d25e48825ff8ed37fcdf7bba42d465f6136ecfa95e9e9182eade62529bbcc
Markdown4fe8bb9667830844c013350b171bd9a4f20e06eb4f85e9f84e383f0d7715c262
PDF
Publication page2268fcd4e43bcd196115f374eec2db9165bab80a17bc2224df727fd86804d6f7
Manifestbfb819a58e4e6114fd29026a857f5008330b1123ddeae4e3f28f0901884bb79b

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
SignaturegVr8h8OwANZkW2D2x05IYz5OSsJcBwzBNueYMm2jiITs0Rxh6yaT56Ks7NtsxyRtDgFVDpsLH4q0jRE8uhKFBA==
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

2026-09-17T09:58:38.546667ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082946
observed 2268fcd4e43bcd196115f374eec2db91...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:38.527862ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082946/manifest.json
observed bfb819a58e4e6114fd29026a857f5008...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:38.510524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082946/publication.md
observed 4fe8bb9667830844c013350b171bd9a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:38.492752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082946/publication.txt
observed c41d25e48825ff8ed37fcdf7bba42d46...
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.