OpenTechnical

OT-2026-000090638

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, pump fed, pressure sensor per zone, sustained 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-2026-000090638) never changes.

Identity and time

Publication numberOT-2026-000090638 · never reused
Internal UUID01a0ae9c-7f30-765e-848e-a08d27c92d58 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090638
StatusPUBLIC

Content hashes

Canonical text73629679c455eae7161c85f43f52431eea895b6f66fd6b4227e722bd65d278f0
Markdown891fc5ddb7a7482ddd7a105e7afb85a07a7338e03ddc24ebf260c14240ba6d98
PDF
Publication page7bde044810e9170605ca9b5f0c1b7d331c0fdc0135b1d5259ba3d58ecad87a88
Manifest302e776cf99bdcd630506e9eeba14661de9f4046c0e49968d6e2920cb9c9fc98

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
SignaturebDStgQBInk4QT64VvFBhCRbI87mq4M2+FWdwX/60fgpTb3v4Z46B3V/9HURGkee7XUslqEPOGmKPqhIp6sr5Dg==
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

2026-09-17T09:44:49.471920ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090638
observed 7bde044810e9170605ca9b5f0c1b7d33...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:49.453719ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090638/manifest.json
observed 302e776cf99bdcd630506e9eeba14661...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:49.437565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090638/publication.md
observed 891fc5ddb7a7482ddd7a105e7afb85a0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:49.420077ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090638/publication.txt
observed 73629679c455eae7161c85f43f52431e...
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.