OpenTechnical

OT-2026-000077058

Publication integrity record

Single bellows cup vacuum gripper, three 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-2026-000077058) never changes.

Identity and time

Publication numberOT-2026-000077058 · never reused
Internal UUID01a0ae94-f507-72eb-8b8e-e81dc2dff715 · 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-2026-000077058
StatusPUBLIC

Content hashes

Canonical text675d74f13bd901761b68025fcc42ba14b07e224119925a5a896006cca8da6f18
Markdowna1dc864726fe428e5c7cbc0f9d7c62d227b8a0163c7b9e6852f135e7b04cd990
PDF
Publication pageb510f2e07604288e96ebe0586554ea04871b4f0d2770cd15b34499d3fb34c9f4
Manifest5b157b666c7b9d7d6ac88eba8e1d8fd97a0f3732082172a0d938b7ca9fbb4397

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
SignatureGYCR/cpBXQmXMf6p5/GkHtTwmEMIKyzvuX5m6RJunJmovUg7qa3/ZOfMSHu6dqI6aY/AYy/GlW/JTBHEPTdkAg==
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

2026-09-17T10:11:21.737518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077058
observed b510f2e07604288e96ebe0586554ea04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:21.292194ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077058/manifest.json
observed 5b157b666c7b9d7d6ac88eba8e1d8fd9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:21.270626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077058/publication.md
observed a1dc864726fe428e5c7cbc0f9d7c62d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:20.803675ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077058/publication.txt
observed 675d74f13bd901761b68025fcc42ba14...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:30.514396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077058
observed b510f2e07604288e96ebe0586554ea04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:30.495257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077058/manifest.json
observed 5b157b666c7b9d7d6ac88eba8e1d8fd9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:30.476346ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077058/publication.md
observed a1dc864726fe428e5c7cbc0f9d7c62d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:30.455746ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077058/publication.txt
observed 675d74f13bd901761b68025fcc42ba14...
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.