OpenTechnical

OT-2026-000073237

Publication integrity record

Two bellows cup vacuum gripper, two zone face, six outlet manifold, plant vacuum fed, supply line pressure sensor, 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-2026-000073237) never changes.

Identity and time

Publication numberOT-2026-000073237 · never reused
Internal UUID01a0ae92-efb6-72db-9f23-fb79d3e194ac · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073237
StatusPUBLIC

Content hashes

Canonical texte949e700a1789f1bf4e52d0f9412d504161b50a4a3dc8d6dfeaa833af9c44dff
Markdown28db5bf8955cf85bf70641e15b3496b00be66b8d24e0ed4be7d0e2062436d174
PDF
Publication page5ddf74e2067c522a2930b77f431e334eed5962f884b2422c6ef8671a7423283a
Manifest37c1d6fd5b599ecbe142edb3cc4d533313ad64ac29180d441452f7ab620cf986

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
Signature2bVE93hwAbCLb8PjzTdl1srFBlg5giI/othkc2zsA05vfAB/C8weQeZ8aiLh9jtVddUumucxJMoJ/TMhV750AA==
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

2026-09-17T10:21:13.412545ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073237
observed 5ddf74e2067c522a2930b77f431e334e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:13.392319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073237/manifest.json
observed 37c1d6fd5b599ecbe142edb3cc4d5333...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:13.373315ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073237/publication.md
observed 28db5bf8955cf85bf70641e15b3496b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:13.356145ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073237/publication.txt
observed e949e700a1789f1bf4e52d0f9412d504...
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.