OpenTechnical

OT-2026-000076287

Publication integrity record

Foam pad vacuum gripper, four zone face, plant vacuum 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-2026-000076287) never changes.

Identity and time

Publication numberOT-2026-000076287 · never reused
Internal UUID01a0ae94-6a70-7232-a5db-c715a2684d8e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076287
StatusPUBLIC

Content hashes

Canonical textd035b96fe50b3725792b5aaba6caa2137a94a200ffc36f6e1673f6170bd73a95
Markdown65f594336c5afb3f69ab38b4e18ca3b6cd041cd43169d3c95c8e07442391e614
PDF
Publication page516d5f5f5ece5f2cf0ecc936660c62c5674e9e4da03d508b255cfee699eca6cd
Manifest09034c4c0f3e2173c9e9fe346111a12f14ede2213eaf7112d78b409c92745fac

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
Signatures4p7MIaqF1RlpYsVRmE2wbtqFsd8N2Wxjvd6VoilL8RA3Ey8qpxgrbdKIRG+nyX7oMEfXVdCKD1X4T2pZ+DxDA==
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

2026-09-17T10:12:04.807806ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076287
observed 516d5f5f5ece5f2cf0ecc936660c62c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:04.788453ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076287/manifest.json
observed 09034c4c0f3e2173c9e9fe346111a12f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:04.767534ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076287/publication.md
observed 65f594336c5afb3f69ab38b4e18ca3b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:04.750168ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076287/publication.txt
observed d035b96fe50b3725792b5aaba6caa213...
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.