OpenTechnical

OT-2026-000067954

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, sustained blow-off after 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-2026-000067954) never changes.

Identity and time

Publication numberOT-2026-000067954 · never reused
Internal UUID01a0ae8f-c4fd-71ea-a1b4-14705d9c091d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:52.812402Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067954
StatusPUBLIC

Content hashes

Canonical text5e16d8660dfb6ff46bb9131d4835248c4623c0b6955424abaa993dfc29b8e9a1
Markdown2a5722a4aff6ce81baeaff78bf12207c4dd2eb69f8754b3ba9f84e99d0e79a37
PDF
Publication page99c2f1b886a1652f0de8a92788ffc9d3413a5a219bc88c0bd6e721a1ab4f9804
Manifest430d4cb850eeb1a063db3312dd493984d986e33b7f7d294a93aa3d71c7e49383

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
SignatureCcOs3Iy3CcxquL0wrV8nE8iT3VvLXMMDaL7IcSzB52P1QY5ILbjmc/BMUsKFBnizK1+fkvaMCibibsH85FseCA==
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

2026-09-17T10:30:22.559670ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067954
observed 99c2f1b886a1652f0de8a92788ffc9d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:22.539542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067954/manifest.json
observed 430d4cb850eeb1a063db3312dd493984...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:22.519732ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067954/publication.md
observed 2a5722a4aff6ce81baeaff78bf12207c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:22.503116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067954/publication.txt
observed 5e16d8660dfb6ff46bb9131d4835248c...
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.