OpenTechnical

OT-2026-000081258

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, 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-2026-000081258) never changes.

Identity and time

Publication numberOT-2026-000081258 · never reused
Internal UUID01a0ae96-f374-7e73-a4c7-4451ffd7cafb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081258
StatusPUBLIC

Content hashes

Canonical text835c8537c87742d636ad007753c835938f1eb0aacea3a3a2818c08c7b0d31ca1
Markdowna5595a7854b0d03ef2d549f0e1ec781e2d2690207429c9da6b4869961c94e1d8
PDF
Publication page35cca57d94b0ea4da80cfcb27736573d1d6b532f3bf1a7daddb5a0fbd8f6f0c3
Manifest9fd4b7801ac29103c9ca637d0ccbf5b7d955f9db33cd1931694185a1c2103849

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
Signaturevuxil6lREBTteOOVnr+zIRBlnhYIyJuSvmjV03XP3nEqMzIj+3N/iQ2ahXyyPXl0lpoHoWff7vhAYa+TUozuCA==
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

2026-09-17T10:01:21.220936ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081258
observed 35cca57d94b0ea4da80cfcb27736573d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:21.200276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081258/manifest.json
observed 9fd4b7801ac29103c9ca637d0ccbf5b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:21.178969ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081258/publication.md
observed a5595a7854b0d03ef2d549f0e1ec781e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:21.159580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081258/publication.txt
observed 835c8537c87742d636ad007753c83593...
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.