OpenTechnical

OT-2026-000066791

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, two stage ejector, pressure sensor per zone, 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-2026-000066791) never changes.

Identity and time

Publication numberOT-2026-000066791 · never reused
Internal UUID01a0ae8e-ce43-7c57-ad64-b3c32c74a4f4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:49:49.649149Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000066791
StatusPUBLIC

Content hashes

Canonical text31350b7801c04708ef3ac8cefcb2212298bd496fef3628f0ec71c5b4490040d1
Markdown03a0959828fee7ad176d60701e6691189f59929353396594c7f275854019b100
PDF
Publication page1bb2d5d8d9c32f83e1410100d3ac3f995c29dff689bccbb537072196d4d44f45
Manifestd092f789d8bea81abdf0ea577af9793b04e336d4c91fe1ccf12208a577cb251a

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
SignatureEcwluQVmFcFbLuUpQSuX23nhDRF8RcgRbiTI3phwKPWZaNBO+ak2CcvleOcojoZhgSlV+yZyT0+Bp40MRaxTBA==
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

2026-09-23T12:41:30.936532ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066791
observed 1bb2d5d8d9c32f83e1410100d3ac3f99...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-23T12:41:30.884114ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066791/manifest.json
observed d092f789d8bea81abdf0ea577af9793b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-23T12:41:30.834760ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066791/publication.md
observed 03a0959828fee7ad176d60701e669118...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-23T12:41:30.778660ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066791/publication.txt
observed 31350b7801c04708ef3ac8cefcb22122...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T10:33:12.918930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066791
observed 1bb2d5d8d9c32f83e1410100d3ac3f99...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:33:12.900741ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066791/manifest.json
observed d092f789d8bea81abdf0ea577af9793b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:33:12.882873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066791/publication.md
observed 03a0959828fee7ad176d60701e669118...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:33:12.863982ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066791/publication.txt
observed 31350b7801c04708ef3ac8cefcb22122...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent