OpenTechnical

OT-2026-000028507

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, three stage ejector, pulsed blow-off before set-down

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-2026-000028507) never changes.

Identity and time

Publication numberOT-2026-000028507 · never reused
Internal UUID01a0ae72-e2f8-7e49-82f7-fb9a393333b1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028507
StatusPUBLIC

Content hashes

Canonical textf8c6beb076659ba8ed4903215a02749b603551d44fed1017d797cc3e4006e6b3
Markdowncc583d760e82430142ab7f79645ac1cdbab16aafcd224081af62af977433b7d0
PDF
Publication page315bbc1e6052e62e073dd671d613980436a25f03cff7dd42c75ee85f102ab64f
Manifest37360d2af87ba01a3a8c3d37426ce079be69c1764f9af9b03e2a725e359b72cc

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
Signature+5UF+PY7fbAPYuqH0SAtPTmpEA+vpuU6MwIPYr8CbNA1I8L4kzuKXbbGr32eflAWBaCKfAdBvcsoG3xQzg4JAg==
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

2026-09-17T11:40:46.311982ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028507
observed 315bbc1e6052e62e073dd671d6139804...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:46.293230ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028507/manifest.json
observed 37360d2af87ba01a3a8c3d37426ce079...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:46.275384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028507/publication.md
observed cc583d760e82430142ab7f79645ac1cd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:46.256536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028507/publication.txt
observed f8c6beb076659ba8ed4903215a02749b...
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.