OpenTechnical

OT-2026-000055565

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented 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-2026-000055565) never changes.

Identity and time

Publication numberOT-2026-000055565 · never reused
Internal UUID01a0ae86-a102-7bde-ae45-3d3c13d2a2ed · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:53.783868Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055565
StatusPUBLIC

Content hashes

Canonical text2ba106e59071fee5186ec67e4fb9dcc4ec1bd39a3034ec9266e50ed9cbdaeab6
Markdownc05cf51559592c36fc4158060d2ce2c25846bfb179ac44663060dccaab4b6d3d
PDF
Publication pagec316f7e9a1b83feb36c5acf8c9573ed5ebed14cfba55845f15d23d5369f0489a
Manifested4ba8e34e6461486759c908692e7d2447535ef9d5a03563b927604bf8be47d3

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
SignatureRMW48poZ7AjCzdNTKLAXmXoVSDKdaImGaOwebz5zlqRAFnxsiRbYSypsuSr9oKi2h9TwcbprkDAt/7McytbEDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:52:48.004951ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055565
observed c316f7e9a1b83feb36c5acf8c9573ed5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:47.987567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055565/manifest.json
observed ed4ba8e34e6461486759c908692e7d24...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:47.971366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055565/publication.md
observed c05cf51559592c36fc4158060d2ce2c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:47.954327ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055565/publication.txt
observed 2ba106e59071fee5186ec67e4fb9dcc4...
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.