OpenTechnical

OT-2026-000072288

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, vented before 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-2026-000072288) never changes.

Identity and time

Publication numberOT-2026-000072288 · never reused
Internal UUID01a0ae92-47c3-788f-b7ad-c66e1efaba33 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072288
StatusPUBLIC

Content hashes

Canonical textc054427e96e333d521a0ded330331ffbcde1968ef192e40ce958a59518683fa0
Markdown69bd19f65e0a813aa92e7524fcdb8a019c78ebc786664443fe95463395c40071
PDF
Publication page8dff00e4591a81933f75db7c47b59695b143b4fca538ee96bed73a4f15238721
Manifest1f06d75a1df2f68f34fd98b461ea9bee6b9c0892f4a7f8e9048835db321b2a7c

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
Signature4x/mPkNdaGqgoE8SP/IyRO6zJb54d6B4u3b8pKGOSiZaLZV7ew8cOzSgshqfx/emsICOO7J9uZPEyscdweSQCg==
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

2026-09-17T10:23:24.280360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072288
observed 8dff00e4591a81933f75db7c47b59695...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:24.262333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072288/manifest.json
observed 1f06d75a1df2f68f34fd98b461ea9bee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:24.242963ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072288/publication.md
observed 69bd19f65e0a813aa92e7524fcdb8a01...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:24.226164ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072288/publication.txt
observed c054427e96e333d521a0ded330331ffb...
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.