OpenTechnical

OT-2026-000043142

Publication integrity record

Foam pad vacuum gripper, single stage ejector, sustained blow-off after 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-2026-000043142) never changes.

Identity and time

Publication numberOT-2026-000043142 · never reused
Internal UUID01a0ae7b-327a-7a04-811c-82377d3cab94 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043142
StatusPUBLIC

Content hashes

Canonical textd02bc97dc0098f39b500601c50d5e29a550b956c4caa6472c137ef0556bfbde3
Markdown2dd9dc8d6dc66156e14298153e1a7bf876d7d157fb0f08023dd23c6df88a4265
PDF
Publication paged4a1e4dc093de9d31366f3e88c1b570af87ea9b1a1c41d6551aa6d69e73255a7
Manifestbfbbf1231b163d12a6b9198c0c791c70b2fc856c8b0ea432b8509a3a146d05e5

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
SignatureZTUyWfExctHqNA14RoW+lRsRTJr7cMaJiwWOG61rekaQk4P2fX7sY2+Mgcgicd3tdyaIVU/vppmL+olOjR4hBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:13:34.831489ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043142
observed d4a1e4dc093de9d31366f3e88c1b570a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:34.813181ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043142/manifest.json
observed bfbbf1231b163d12a6b9198c0c791c70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:34.793842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043142/publication.md
observed 2dd9dc8d6dc66156e14298153e1a7bf8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:34.774632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043142/publication.txt
observed d02bc97dc0098f39b500601c50d5e29a...
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.