OpenTechnical

OT-2026-000071715

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, three stage ejector, supply line pressure sensor, pulsed blow-off 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-2026-000071715) never changes.

Identity and time

Publication numberOT-2026-000071715 · never reused
Internal UUID01a0ae92-1e91-7a93-9f3f-6307f9c851e6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071715
StatusPUBLIC

Content hashes

Canonical text440b2cdfe5a601919e410c9c5253631dcd8a1cd0b3bcc8d3f6761572b18fea16
Markdownfdfa3ccc32b97d4b21c81f4b0eb5472095a40f6161058f86feaa6ea2624a9656
PDF
Publication page22810ef8264020358510d9020e67568b9761860e294a5e1851218f837c663ed6
Manifest831e1eaf3326bebd8e2d7e647729e2ac7662a961af05f2390bda970cff4c9921

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
Signature6lhVOY37v5O3LzV1zNSfmNknVz9BDSL6Z5/3ugUaMwDWj2VBR6fosujIdVx8UKWErof7eILq9MOZy0dpYlFUBw==
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

2026-09-17T10:23:51.971074ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071715
observed 22810ef8264020358510d9020e67568b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:51.952881ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071715/manifest.json
observed 831e1eaf3326bebd8e2d7e647729e2ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:51.933825ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071715/publication.md
observed fdfa3ccc32b97d4b21c81f4b0eb54720...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:51.915751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071715/publication.txt
observed 440b2cdfe5a601919e410c9c5253631d...
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.