OpenTechnical

OT-2026-000042561

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, sustained blow-off 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-2026-000042561) never changes.

Identity and time

Publication numberOT-2026-000042561 · never reused
Internal UUID01a0ae7a-c0cd-7422-8e39-9a8fda2b0ecb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042561
StatusPUBLIC

Content hashes

Canonical textfb015b21fc98e57bae5fbbd41d96daba6e6063c0b04c654458506dba0d5fd275
Markdowna872677fb315122093b3bbadfed823a8a1068c464d803ba02ad5d94b0d0e8fb8
PDF
Publication pageb5fc5639fd7fd3f61e41b3d5bed84672418a9ef72ad8e01f5f5cc536c8e06f1a
Manifest90ff7d993b63cef61a3e1ca872ab96d0890c1ffc777917363c2d74162f27d4d0

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
SignatureS75TzUHbCf8jitNrlgxae1ZGlWbr9cueW7Snn8QWnCOTnlR4ol9a1WTVpJvhlqahd24NW3GGUChUC7wsXIQhCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:14:16.294975ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042561
observed b5fc5639fd7fd3f61e41b3d5bed84672...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:16.274580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042561/manifest.json
observed 90ff7d993b63cef61a3e1ca872ab96d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:16.256315ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042561/publication.md
observed a872677fb315122093b3bbadfed823a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:16.237658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042561/publication.txt
observed fb015b21fc98e57bae5fbbd41d96daba...
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.