OpenTechnical

OT-2026-000077278

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, 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-2026-000077278) never changes.

Identity and time

Publication numberOT-2026-000077278 · never reused
Internal UUID01a0ae94-f508-70c3-a17e-42220f13a7f2 · 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-2026-000077278
StatusPUBLIC

Content hashes

Canonical textf62ebb7a31e463ee059e462b1e3a4997fa24e92458f2233e97ccd8781e3af056
Markdownbe9da0e7c43d51472b3bdd6be243483200fc628fc824166b629ef02e68f0d3c1
PDF
Publication page0d7108ddca7777608615ac5bc6fff469893786c3c23cc301677cbe8d5fe30770
Manifesta3f54a6e85f817b6a9ebc02630b460f2a16be500e555996b619dceafcc868be5

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
SignaturesMJftJU+AhD0LnTVajEQ/+CCojqdNODr9PbF6a+penQrUJ6BaIG9zazOAOozQ1kZHHvPZ236CazIFZVdI/qkCA==
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

2026-09-17T10:10:58.007682ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077278
observed 0d7108ddca7777608615ac5bc6fff469...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:57.990280ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077278/manifest.json
observed a3f54a6e85f817b6a9ebc02630b460f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:57.972407ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077278/publication.md
observed be9da0e7c43d51472b3bdd6be2434832...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:57.953479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077278/publication.txt
observed f62ebb7a31e463ee059e462b1e3a4997...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:25.139823ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077278
observed 0d7108ddca7777608615ac5bc6fff469...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:25.120262ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077278/manifest.json
observed a3f54a6e85f817b6a9ebc02630b460f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:25.100487ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077278/publication.md
observed be9da0e7c43d51472b3bdd6be2434832...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:25.083049ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077278/publication.txt
observed f62ebb7a31e463ee059e462b1e3a4997...
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.