OpenTechnical

OT-2026-000031068

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, sustained 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-2026-000031068) never changes.

Identity and time

Publication numberOT-2026-000031068 · never reused
Internal UUID01a0ae74-3fb8-7403-a182-677c5f5cbe1e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:49.275361Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031068
StatusPUBLIC

Content hashes

Canonical text27352df8651c74ad09a98b93b8d605c34104feb5339a14dfd089706e48375a81
Markdown22fdcdee3a289f006dc9ed1493edbc6240e42cfc4329d218e7499b708b4045cb
PDF
Publication page91685df3a23474f34614c11ade5f08f841c0ed26e3ca806552ce786065e8cdd5
Manifest8fbbcc644d75bfd05831006d0bbbec285095b2cf869f97f22297913bbead6da0

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
SignatureYobM8prvUlJJXLUWxvU54IgaHCpzlAdxpY6vvaDo+50L4FW6SVt+W4Q0VjjV1CwapVrj91q8BPIn58dYKmDVDA==
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

2026-09-17T11:40:16.962150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031068
observed 91685df3a23474f34614c11ade5f08f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:16.933730ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031068/manifest.json
observed 8fbbcc644d75bfd05831006d0bbbec28...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:16.901780ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031068/publication.md
observed 22fdcdee3a289f006dc9ed1493edbc62...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:16.850683ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031068/publication.txt
observed 27352df8651c74ad09a98b93b8d605c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:37:39.281358ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031068
observed 91685df3a23474f34614c11ade5f08f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:37:39.264452ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031068/manifest.json
observed 8fbbcc644d75bfd05831006d0bbbec28...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:37:39.248074ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031068/publication.md
observed 22fdcdee3a289f006dc9ed1493edbc62...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:37:39.231873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031068/publication.txt
observed 27352df8651c74ad09a98b93b8d605c3...
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.