OpenTechnical

OT-2026-000072456

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, supply line pressure sensor, vented 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-2026-000072456) never changes.

Identity and time

Publication numberOT-2026-000072456 · never reused
Internal UUID01a0ae92-89d8-71bc-aa6f-aec2b9a21074 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072456
StatusPUBLIC

Content hashes

Canonical text9cca5a0718998f192cf537bd72bb44db0e5ea621d871da96cbf1dc75dbcd8fa5
Markdownd51325c63f21cde0bd57dd895b0356a9d7e7b496e43d16f08694bdc2d66ebbdb
PDF
Publication pageec1f8c0e97c2b3626bb64da29c509c4d9e9859892c2fa9847355327c35f0a8ec
Manifest036c15a5d37aca4ec07b46c1d266f13dd2c48f72d0ba37e6c5e72d8ee4c50ff1

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
SignatureKZZRlUAeU1fjaC8YxfD3XKHyWK0McRuM30eSzvqe7mXzDmqgzbnF/Ssw+lCNvyUQkcFutkG75QKVlYzjCOx4Dw==
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

2026-09-17T10:22:16.594321ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072456
observed ec1f8c0e97c2b3626bb64da29c509c4d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:16.576290ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072456/manifest.json
observed 036c15a5d37aca4ec07b46c1d266f13d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:16.559579ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072456/publication.md
observed d51325c63f21cde0bd57dd895b0356a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:16.540215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072456/publication.txt
observed 9cca5a0718998f192cf537bd72bb44db...
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.