OpenTechnical

OT-2026-000073986

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, supply line pressure sensor, vented 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-2026-000073986) never changes.

Identity and time

Publication numberOT-2026-000073986 · never reused
Internal UUID01a0ae93-2b8f-7cc1-9044-685856054593 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073986
StatusPUBLIC

Content hashes

Canonical text059f9ec745691eb704e1a4e5b6b9fb8e5ae2492c5002680f6b5b237b984c8a2e
Markdown57ec03e55c91a65501101fb5d4f23d02d9d6da7f3cce18f5d2b0fdedf2146fa8
PDF
Publication page2d253551c391cd20202e3eea4a80de450bdcc729c375628e21394535d5812a91
Manifest69031a3fd6c9571f8e38d079a3f9db880821c1d632e2f84ea57eb6aa8bbd4b3b

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
SignatureQwX8drjjCBEcXOb6OAzimaEvbubsFFBjiBfYqekkyWAfNuMDNrmHrTT6aYc7FARJwnM/ODluGlR68em0DtF4Bg==
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

2026-09-17T10:20:16.901895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073986
observed 2d253551c391cd20202e3eea4a80de45...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:16.883199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073986/manifest.json
observed 69031a3fd6c9571f8e38d079a3f9db88...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:16.865244ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073986/publication.md
observed 57ec03e55c91a65501101fb5d4f23d02...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:16.846099ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073986/publication.txt
observed 059f9ec745691eb704e1a4e5b6b9fb8e...
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.