OpenTechnical

OT-2026-000077372

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, pump fed, 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-2026-000077372) never changes.

Identity and time

Publication numberOT-2026-000077372 · never reused
Internal UUID01a0ae94-f509-7acd-b85f-6ba2e58fae83 · 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-2026-000077372
StatusPUBLIC

Content hashes

Canonical text6fc8b4228ce357c3839d25da02ed7c12b7b84be583435b8d87c90816073bac31
Markdown0ef85a4be74877ec4fb3a12587192471d96cfd9b2301fb220d4aa489d69cb82b
PDF
Publication page47fff86bf93f27f98d1295a2ea98649f5a37283b807e7d956149bc4bf03c4b5f
Manifest251bc844a09895c96649079f2ec5ca0cbb0270c3f69248595eb1dc763c9d1217

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
SignaturecHZGhZNHGgWT816g9cvsf1L7oNSy7g2bAz453D7dsPNiVvT74PFVN2apOYCHQdDnI9DWEI4pMv+Bxp4K0plHCA==
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

2026-09-17T10:09:01.012779ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077372
observed 47fff86bf93f27f98d1295a2ea98649f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:00.993785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077372/manifest.json
observed 251bc844a09895c96649079f2ec5ca0c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:00.972708ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077372/publication.md
observed 0ef85a4be74877ec4fb3a12587192471...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:00.951856ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077372/publication.txt
observed 6fc8b4228ce357c3839d25da02ed7c12...
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.