OpenTechnical

OT-2026-000042317

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, three stage ejector, sustained blow-off after set-down

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-2026-000042317) never changes.

Identity and time

Publication numberOT-2026-000042317 · never reused
Internal UUID01a0ae7a-5d74-73ff-b8ae-8e8116a91283 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042317
StatusPUBLIC

Content hashes

Canonical textb00e1328a17f9d7246667b0c45fdd3c6ec8c70d63f0c9c8ce931feb35c097cd1
Markdown47920f01551de409107e32d29d42a5d409b1d24e798c64a43d2646d5c99c8770
PDF
Publication page6bdd2f8c9c556cca511e18a1208f29949a8121d74c25b73147d27fe0d7743310
Manifest7cfa07f4b2ddf8d61bfc37f1f789ecddcdb95cf72a402d14c593842cdc54536a

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
Signature2t1nKiF7xSmAmIJ8ldTizkvjeMC0+GnmkMgs8+O0ZGouqJMyb7Oui5KQhVQ5VujVpl2Y2CZbBT0pyGDRzl6QDA==
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

2026-09-17T11:16:01.197656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042317
observed 6bdd2f8c9c556cca511e18a1208f2994...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:01.177349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042317/manifest.json
observed 7cfa07f4b2ddf8d61bfc37f1f789ecdd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:01.158462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042317/publication.md
observed 47920f01551de409107e32d29d42a5d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:01.139647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042317/publication.txt
observed b00e1328a17f9d7246667b0c45fdd3c6...
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.