OpenTechnical

OT-2026-000081167

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, pump fed, sustained blow-off before 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-2026-000081167) never changes.

Identity and time

Publication numberOT-2026-000081167 · never reused
Internal UUID01a0ae96-f373-7f13-bf9e-62039b77d4d0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081167
StatusPUBLIC

Content hashes

Canonical text41d139861204c69266e1a7b00dc1ffb9bd05949f13962532fecd7b2e973c0458
Markdown60e61b867e170a5489aac11a18dc8d28fcd07c49d313d344e6b3e89ceb9b5800
PDF
Publication page711b640f75b5337001dd56460ab59b6b80d75fd8f545774a1a0a9d774863c0be
Manifest08eb6636700aa0a5f9c2e4ddcc814011b9fbb97e8af39983b13bc2f5c723047f

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
SignaturedmQBY+ekRKJCeMGCx1BYSG6u/OE5dLFdFyKLP/xeuIJ/b+09uZGOcmNySvnnvI7Vn1C5zI5XlC9oALmP3TivAA==
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

2026-09-17T10:01:08.455489ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081167
observed 711b640f75b5337001dd56460ab59b6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:08.438245ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081167/manifest.json
observed 08eb6636700aa0a5f9c2e4ddcc814011...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:08.421989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081167/publication.md
observed 60e61b867e170a5489aac11a18dc8d28...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:08.404661ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081167/publication.txt
observed 41d139861204c69266e1a7b00dc1ffb9...
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.