OpenTechnical

OT-2026-000005392

Publication integrity record

Bellows cup vacuum gripper, common isolation valve, two stage ejector, contact triggered

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-2026-000005392) never changes.

Identity and time

Publication numberOT-2026-000005392 · never reused
Internal UUID01a0a937-94ea-764d-aaee-22929d0f97ca · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:56:27.245379Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005392
StatusPUBLIC

Content hashes

Canonical text172d106e20651776673289be56881f6d29bee2607be868d33635ec23f6b248d3
Markdown30a99f7206b6b9d1a6dc2a2ab9b815edaa72ce678013b21ac45ba91d21632352
PDF
Publication page4e05f9c0a3aaca21b40a579cd6620a69750df477dd212ae5e1acef368369f700
Manifest920fb4f4df03fc668288b215b6555a60d9b3be3f651a1242947e3ba2748d9531

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
SignatureKixM3blC5Zg5BtpWNfwEbJ/xatfKGpUsKcghEEKOxRgHfpU8GpNrRvJxNG1Y9QIkTO7Gm2hB92oWkUGXxy2qCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:00:14.872905ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005392
observed 4e05f9c0a3aaca21b40a579cd6620a69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:14.733716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005392/manifest.json
observed 920fb4f4df03fc668288b215b6555a60...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:14.719843ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005392/publication.md
observed 30a99f7206b6b9d1a6dc2a2ab9b815ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:14.706441ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005392/publication.txt
observed 172d106e20651776673289be56881f6d...
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.