OpenTechnical

OT-2026-000077400

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, single stage ejector, 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-2026-000077400) never changes.

Identity and time

Publication numberOT-2026-000077400 · never reused
Internal UUID01a0ae94-f509-74df-b13f-fa033ba36ef1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077400
StatusPUBLIC

Content hashes

Canonical text93e2f9ed3b68c96ef02f39dd0479b51f6cd2c9fbea3154d71acc9ba92b5e1ac4
Markdownfc89335bc475e971e38ce4ddaf5c6c5819a83fa59a45de45c1d5b7d270383551
PDF
Publication page87e70d5624ed48b42149a4f2b1ee65fb0e0ea1ba30212c424a3e48e6e568276d
Manifest9e1aedde66bab1b1270ec94c8bfa4529a87a53ab5fd6f83ab22782c173f06b00

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
SignaturesCa2Q4FyYELzdQAAJSgbSUuN8kFRuPgacWtVShFoN4N0EM5BjJjt0hy9KApY//7GO+2hn1kX+MuxGU2wq4svAw==
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

2026-09-17T10:09:02.896389ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077400
observed 87e70d5624ed48b42149a4f2b1ee65fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:02.876530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077400/manifest.json
observed 9e1aedde66bab1b1270ec94c8bfa4529...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:02.856957ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077400/publication.md
observed fc89335bc475e971e38ce4ddaf5c6c58...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:02.833668ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077400/publication.txt
observed 93e2f9ed3b68c96ef02f39dd0479b51f...
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.