OpenTechnical

OT-2026-000091220

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, three stage ejector, pressure sensor per zone, sustained blow-off 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-2026-000091220) never changes.

Identity and time

Publication numberOT-2026-000091220 · never reused
Internal UUID01a0ae9c-f16c-7e35-9339-329d48d69159 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091220
StatusPUBLIC

Content hashes

Canonical texta24d87ec6c090c160fc5b5f6fa867857b2086054fe8ced0c99f6c7feb96fabe0
Markdown7ac2454828ce1e33ddb76eda25bd4be715de474e3f03cd02960b8afb3316a13e
PDF
Publication page8ce57769ed172d769c276e265f850e213015948cc0f9e02a8e0121ba20a380f9
Manifest5ee27de74f6796e45a6262b2d1779c85341188ec787bde3678cb8a0346f790a7

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
Signature16W/AmDr/y9XiBfVvxZFjhzyqJyQzWvdZSphZ2TrXaatoT/o7erRvp96NHpjNXXWKTRJycsiaXQF1QayS1dwBg==
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

2026-09-17T09:43:23.450728ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091220
observed 8ce57769ed172d769c276e265f850e21...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:23.432850ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091220/manifest.json
observed 5ee27de74f6796e45a6262b2d1779c85...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:23.416573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091220/publication.md
observed 7ac2454828ce1e33ddb76eda25bd4be7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:23.400624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091220/publication.txt
observed a24d87ec6c090c160fc5b5f6fa867857...
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.