OpenTechnical

OT-2026-000006789

Publication integrity record

Porous face vacuum gripper, pump fed, contact triggered, open cell, 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-2026-000006789) never changes.

Identity and time

Publication numberOT-2026-000006789 · never reused
Internal UUID01a0a967-74a1-7ec9-8ab5-bae9894fa98d · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:48:44.708261Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006789
StatusPUBLIC

Content hashes

Canonical text36e364ebbc6ac078f23bfc7af163ea495750b81317a471c415f8cbc466a66f17
Markdown9ba57af261ee3c498fc2af640ebec5366fd8894080344c32f6ad9386f58d58f1
PDF
Publication paged114b447beed88362e76e3147f5fdbb54e83341a7a7c3212d97b50acf2da9766
Manifest15aebbd30691f0f587538fe61dc3dd1a2a8c615dce3506cf47db0dc68667452f

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
SignatureP850zoEh0vRIEUXzLMu1Uu6bRy+8ifz1bbWA+ya5ALYh9em7RgUXI+RmU2cEyWUrTmn4jXznQzDWoVyxhYkRBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T08:50:06.206523ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006789
observed d114b447beed88362e76e3147f5fdbb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:06.192220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006789/manifest.json
observed 15aebbd30691f0f587538fe61dc3dd1a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:06.177696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006789/publication.md
observed 9ba57af261ee3c498fc2af640ebec536...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:06.164038ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006789/publication.txt
observed 36e364ebbc6ac078f23bfc7af163ea49...
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.