OpenTechnical

OT-2026-000021119

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, pump fed, 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-2026-000021119) never changes.

Identity and time

Publication numberOT-2026-000021119 · never reused
Internal UUID01a0ae6f-865b-700d-b28b-e2ef337097dd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021119
StatusPUBLIC

Content hashes

Canonical textd3d7d0259ea77f9714e18676fbc9e99abb8d9ebaeec70b05b270d0b5a86440da
Markdown709346ea8114097fffef2510233a172dce475c4aaa6844d93497df48d71d110e
PDF
Publication pagefc8b69babe45b6d68b60c87e6f34de286f151af275dd73bb03a727caf8aea87c
Manifest9009e98548b2e2cd150a8fcd1600dfda5b2f81bc6275e60286afedbc3fe0c3de

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
SignatureUOcHxaKlZOqyIG70gmOwsDU9TH6Hs5yyA1FdeTDSluKheN0r1+MOGnoRaKzj2X8vuua6ZRHgjC3+N7IaR7zVBg==
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

2026-09-17T11:54:51.837598ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021119
observed fc8b69babe45b6d68b60c87e6f34de28...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:51.817259ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021119/manifest.json
observed 9009e98548b2e2cd150a8fcd1600dfda...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:51.798837ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021119/publication.md
observed 709346ea8114097fffef2510233a172d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:51.779096ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021119/publication.txt
observed d3d7d0259ea77f9714e18676fbc9e99a...
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.