OpenTechnical

OT-2026-000073440

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, three stage ejector, manifold 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-2026-000073440) never changes.

Identity and time

Publication numberOT-2026-000073440 · never reused
Internal UUID01a0ae92-efb8-7ff8-91ad-316160f7c27e · 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-2026-000073440
StatusPUBLIC

Content hashes

Canonical textb38cdc8c5fd9a6389b87abc091adef6bce2075255e4f44ac53ec201d11bf4a4f
Markdownf31ef32d8d48377364b6e96bb70ad40d63994015c8bb49d07d75f2712b0d5adc
PDF
Publication pagef8dc638aece4e23039e683d3f16f8a1b25e5e6f3736743bbc9b0d99508e8979f
Manifestfa42107f3b6502fa7e708aa6fbb2a84fb1d6b4ac3e0972e8138166b77234407d

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
Signature5k6K33ILIbF94IhajidzANkmx037HwHaATIjRzTidnZltbBI9OgQV7qCV5qfLI1oUSxdcKcP8y6RINjiUOfwCg==
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

2026-09-17T10:21:35.953796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073440
observed f8dc638aece4e23039e683d3f16f8a1b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:35.932005ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073440/manifest.json
observed fa42107f3b6502fa7e708aa6fbb2a84f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:35.892569ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073440/publication.md
observed f31ef32d8d48377364b6e96bb70ad40d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:35.859227ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073440/publication.txt
observed b38cdc8c5fd9a6389b87abc091adef6b...
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.