OpenTechnical

OT-2026-000033514

Publication integrity record

Foam pad vacuum gripper, common isolation valve, plant vacuum fed, pulsed 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-2026-000033514) never changes.

Identity and time

Publication numberOT-2026-000033514 · never reused
Internal UUID01a0ae75-a38e-7482-89c9-9d9d6bdc4bde · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:22:20.325649Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033514
StatusPUBLIC

Content hashes

Canonical text658185d87f5961c3238354397ff027259a0db933199ec9103b6c71ac730688f5
Markdowneef18230d4ee531c4c01aa5c2d94683411367197cb3bc2a71244fc9061cdcc6d
PDF
Publication paged322b3292b7bcb2f384fa526f4fde3b3ceb31720bdfe70f01fc70435067ed24f
Manifestb04253f054af09bcf243822d6a4658747b04ef82b28d4714215884e4b390c66f

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
Signature18iz1nwaifoKKU4TocKDx7hOTleB+p8V6VUOA7OV8UQGcqkD2LQHsh5oDezycZbXeWWtPVqwbFvqR9yicR+FBA==
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

2026-09-17T11:31:22.109478ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033514
observed d322b3292b7bcb2f384fa526f4fde3b3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:22.083870ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033514/manifest.json
observed b04253f054af09bcf243822d6a465874...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:22.065186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033514/publication.md
observed eef18230d4ee531c4c01aa5c2d946834...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:22.048617ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033514/publication.txt
observed 658185d87f5961c3238354397ff02725...
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.