OpenTechnical

OT-2026-000087731

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, single stage ejector, supply line pressure sensor, 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-2026-000087731) never changes.

Identity and time

Publication numberOT-2026-000087731 · never reused
Internal UUID01a0ae9a-cd55-72b7-aa1c-d48787ea56c7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087731
StatusPUBLIC

Content hashes

Canonical text8bdda62f67b346837c58dad2f34624330a59a1ade4fd5f00e3a7df14ee084b48
Markdown18bbc4bffdfb525cd0ccf2942eed8b6f4f8283a0fc07f6da2316d8bd0bde76d7
PDF
Publication page75157f532037b23c0562fb098fb5be85b671de5db1134b4673bdf1686c72a935
Manifest3608d0433b75dce1cd66a72e7bb3f44deca0844f77ea09b534dbb2665e8516a0

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
Signaturer/BcyyUfyL2iElJfaNzqQTIBR1/AA2+mPtlbVus5qa1/6vHS6V4uZq21/ekq/2di0nOlfGi8LzXIZ1TiVjIpDg==
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

2026-09-17T09:51:11.082895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087731
observed 75157f532037b23c0562fb098fb5be85...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:11.066759ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087731/manifest.json
observed 3608d0433b75dce1cd66a72e7bb3f44d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:11.052216ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087731/publication.md
observed 18bbc4bffdfb525cd0ccf2942eed8b6f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:11.037956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087731/publication.txt
observed 8bdda62f67b346837c58dad2f3462433...
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.