OpenTechnical

OT-2026-000075727

Publication integrity record

Foam pad vacuum gripper, two zone face, pump fed, 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-2026-000075727) never changes.

Identity and time

Publication numberOT-2026-000075727 · never reused
Internal UUID01a0ae94-29fe-7410-9cc6-961d340b41c6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075727
StatusPUBLIC

Content hashes

Canonical text2f23a0b4be30513fbf3a2fcb5efee802005675d39c030b11c5a2d061b12e54f1
Markdown365570519077945eb5afe3a569dd462ed285a38c92183bea7956c543c17a6cf2
PDF
Publication page5b5a9b240317e460bb738de38cd666cbb7faa93ba84acf053f353fd44061ab13
Manifest3c2a2627c3485cf6af57a0667659018707fd81ae15d388dc758eee35b58a9ceb

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
SignatureEyWFtCgzKJYkZCal5wgPkpHgdX9/5Rl146JeAaLkHq3GYFE7Men0ueqSoCKWkoZWyToqmjw+jaOb+EoS6BrVDA==
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

2026-09-17T10:13:57.559669ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075727
observed 5b5a9b240317e460bb738de38cd666cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:57.540318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075727/manifest.json
observed 3c2a2627c3485cf6af57a06676590187...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:57.521344ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075727/publication.md
observed 365570519077945eb5afe3a569dd462e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:57.470165ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075727/publication.txt
observed 2f23a0b4be30513fbf3a2fcb5efee802...
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.