OpenTechnical

OT-2026-000049878

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, plant vacuum fed, manifold pressure sensor, sustained blow-off after 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-2026-000049878) never changes.

Identity and time

Publication numberOT-2026-000049878 · never reused
Internal UUID01a0ae81-fd76-7031-ad50-745deac5cbc1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:49.774136Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049878
StatusPUBLIC

Content hashes

Canonical textec35c9f4935a9a9e4db836c8daf24655b6ca742a79cde4a42806448d7fed98f7
Markdown98b8974261fc80ccaa24c2d8b628c30d3669a9f778d0c2013052af9415d68f6e
PDF
Publication page45e138477956d20039af3dd0175d786209cf38a9b8655ea065a625dbb06f4c99
Manifest25b8cbb02195ba5267794445fb37534a72770b7609287b787ec99fae351fe66d

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
Signature9xkRPsVO5kGBku4fLlBi1X14DvzYUpHwR9M9l54qwRrMAwx1TpdjC/Gs7zOfPY3MMwCqJOW5XOrald/xrxKzBw==
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

2026-09-17T11:01:47.396947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049878
observed 45e138477956d20039af3dd0175d7862...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:47.379957ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049878/manifest.json
observed 25b8cbb02195ba5267794445fb37534a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:47.360964ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049878/publication.md
observed 98b8974261fc80ccaa24c2d8b628c30d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:47.343181ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049878/publication.txt
observed ec35c9f4935a9a9e4db836c8daf24655...
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.