OpenTechnical

OT-2026-000072026

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, three stage ejector, 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-2026-000072026) never changes.

Identity and time

Publication numberOT-2026-000072026 · never reused
Internal UUID01a0ae92-47c0-7298-ac3c-b382281e9e4d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072026
StatusPUBLIC

Content hashes

Canonical text8cbf5b808e6f3fae0e9785c44646e3e4d77f34283bf656c7ca144efe5832ce14
Markdown3b6a5329ab1b4dbbeb62e01ea694389a20a0592c73c25943fe311a29ca5554fa
PDF
Publication page28de0f35564dc319646937ee2a49154d33495d2b63ae9d282137bc31da171d85
Manifest6f9007b14f158d3f1a05aa6841f88b1684d4f432054d7c4dd8baf6875e14fc92

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
SignatureziO4nr66SdAeXFctmZX/ak/gc1uxGsaIu2QZcVA166gvCAGrdq6blFTrWORz1YlCsCF0GGiixg2hZyIhh0DrAw==
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

2026-09-17T10:23:05.269024ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072026
observed 28de0f35564dc319646937ee2a49154d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:05.252485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072026/manifest.json
observed 6f9007b14f158d3f1a05aa6841f88b16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:05.237175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072026/publication.md
observed 3b6a5329ab1b4dbbeb62e01ea694389a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:05.221674ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072026/publication.txt
observed 8cbf5b808e6f3fae0e9785c44646e3e4...
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.