OpenTechnical

OT-2026-000076987

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000076987) never changes.

Identity and time

Publication numberOT-2026-000076987 · never reused
Internal UUID01a0ae94-b071-7039-8630-149bc9ba7136 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076987
StatusPUBLIC

Content hashes

Canonical textb8e1ab9d7269276a2af2e2a362a33c0e911aedc6e5073f536abb2bbed0677643
Markdowne4998e27db26eabc9b9ed5371db6e7ed942fc957c98f09b302191101a7a8ff98
PDF
Publication pageda93c0be1e5a7f429eb172ff1828a3d17085018d3a78557efafe12dfe6c51d6c
Manifestb0383f37ecd32f0462f541567b4c62ecddd578e12968bca65793065319f48a0d

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
SignatureJhQQSQmsxngzHoiByTrrNZvx4dV04c8SDaslqwrpT+JWWgnlLqKpn1ZzoUzvnKkDozUwsWgQWkoRhicpzPwyAg==
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

2026-09-17T10:10:17.484018ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076987
observed da93c0be1e5a7f429eb172ff1828a3d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:17.463585ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076987/manifest.json
observed b0383f37ecd32f0462f541567b4c62ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:17.444314ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076987/publication.md
observed e4998e27db26eabc9b9ed5371db6e7ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:17.298436ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076987/publication.txt
observed b8e1ab9d7269276a2af2e2a362a33c0e...
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.