OpenTechnical

OT-2026-000067621

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, manifold pressure sensor, vented after set-down

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-2026-000067621) never changes.

Identity and time

Publication numberOT-2026-000067621 · never reused
Internal UUID01a0ae8f-6bda-7db5-8f10-14ea40750542 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067621
StatusPUBLIC

Content hashes

Canonical textb7c626bf5b32eecf457bb59facdaa115ebb715e8e1b1f942c41a340a187711b0
Markdown2795110ff2535a9e47fbb0f2302f559314cbad366c2028300383aaafeaa3cc35
PDF
Publication page4d17b92c1d88244bc48a25bd7bc4c7a0bee3f743b6621c9ee1f8fac42f5c31d4
Manifest6ad07a0442648be6baf9bcea1dfe46007d6190359b88c803a9ee5a5166f48c21

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
Signaturey70lm0ZkRGPyrboVfwTv+upm3pJXj8+/zy9sXnV1TF+/UM+rGkjeLqb/wJTHv1ymTpTLlJ1ltmXJyiPFT3mQBQ==
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

2026-09-17T10:31:56.565937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067621
observed 4d17b92c1d88244bc48a25bd7bc4c7a0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:56.548185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067621/manifest.json
observed 6ad07a0442648be6baf9bcea1dfe4600...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:56.531576ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067621/publication.md
observed 2795110ff2535a9e47fbb0f2302f5593...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:56.514009ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067621/publication.txt
observed b7c626bf5b32eecf457bb59facdaa115...
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.