OpenTechnical

OT-2026-000079664

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, supply line pressure sensor, vented 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-2026-000079664) never changes.

Identity and time

Publication numberOT-2026-000079664 · never reused
Internal UUID01a0ae96-4375-754c-9fa2-01acc4dbdc1d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079664
StatusPUBLIC

Content hashes

Canonical textf160b5dff0d7fa2d7d8571528f8262e3d6d886459bb2969124537f4b24e3d581
Markdown07683f0a28cecce3fa7fe09736857268b2d7eb8c4c363f3f23501d8ab6a58bf7
PDF
Publication page400e95f6f9ed9a084346e4d5be14d9ba45ebf6df2a1b5dbc93c7a578bdb338ae
Manifestf80dd36d3fd0db12cb8bcb16616fe964e1545cc09efb07e0b77602cb79abc8b9

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
SignatureE+nPY/H9bKLtHvDD65gFg5/6S8i4t6QzJIvWEU00IV9hcI+z2PyFeGlm2HF/9ofJgCV6cRdH5+GfmBDcbS+nAg==
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

2026-09-17T10:03:26.252182ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079664
observed 400e95f6f9ed9a084346e4d5be14d9ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:26.232916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079664/manifest.json
observed f80dd36d3fd0db12cb8bcb16616fe964...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:26.215098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079664/publication.md
observed 07683f0a28cecce3fa7fe09736857268...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:26.194849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079664/publication.txt
observed f160b5dff0d7fa2d7d8571528f8262e3...
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.