OpenTechnical

OT-2026-000018420

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single 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-2026-000018420) never changes.

Identity and time

Publication numberOT-2026-000018420 · never reused
Internal UUID01a0ae6e-b489-7084-9499-f0aff29d1ec9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:45.971508Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018420
StatusPUBLIC

Content hashes

Canonical text10304b58c7424315d7028142a9a98a95198818e707ce9882fbe0c29ee4eb3d6f
Markdown988246ae7ae2c8bf2611eed1517ccb9fc1dad3c250962f3230908cb1315d7ce4
PDF
Publication page3e7741fde455c68834973941ccee83ac757b30110df1ffe1989171b38101dfad
Manifest8978b6897e60fef67c7564bda08128fcfd5f87ce9b6216b0b23ee3aecd1b3914

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
SignaturenifDvn7qZHrvWl6dbprS50pQaOWxp1wg0SPd4WYcdYHWVB2/TgcylTi6Xy9BXUBz76uCMUxl/cGZiSnQ4hhiAg==
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

2026-09-17T12:01:10.079531ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018420
observed 3e7741fde455c68834973941ccee83ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:10.062425ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018420/manifest.json
observed 8978b6897e60fef67c7564bda08128fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:10.044384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018420/publication.md
observed 988246ae7ae2c8bf2611eed1517ccb9f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:10.026644ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018420/publication.txt
observed 10304b58c7424315d7028142a9a98a95...
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.