OpenTechnical

OT-2026-000020368

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, supply line pressure sensor, pulsed blow-off before 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-2026-000020368) never changes.

Identity and time

Publication numberOT-2026-000020368 · never reused
Internal UUID01a0ae6f-437b-7ac1-a8f5-34033798fe93 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020368
StatusPUBLIC

Content hashes

Canonical text2be66305bf2b509df3df2d286a0bd015c9272c07b0f2ea0c76feb59adc6baf06
Markdownbf69304376f68dc3dc62945fe2b95f16b64cacaeb13d6ec52b38578063a1685d
PDF
Publication page8d6130b75da6887f86157b41370af82a8fedb51558d10cbfb69c928a69a34052
Manifestfd1fb0f459c1d5d1902a609183abbfc45d57ed83e1fdb1bb085065b6879c8dcd

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
SignatureD821XLBY793y9QhayzXpmlZCQcW8JYNkXnLjeJ4v1Eam1NDj/Av9gKeBy5LpZU32lGK+ZvtohqNyIqTj9wdFBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:00:08.694196ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020368
observed 8d6130b75da6887f86157b41370af82a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:08.674040ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020368/manifest.json
observed fd1fb0f459c1d5d1902a609183abbfc4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:08.651082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020368/publication.md
observed bf69304376f68dc3dc62945fe2b95f16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:08.628950ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020368/publication.txt
observed 2be66305bf2b509df3df2d286a0bd015...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:18.806867ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020368
observed 8d6130b75da6887f86157b41370af82a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:18.790151ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020368/manifest.json
observed fd1fb0f459c1d5d1902a609183abbfc4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:18.772625ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020368/publication.md
observed bf69304376f68dc3dc62945fe2b95f16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:18.753230ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020368/publication.txt
observed 2be66305bf2b509df3df2d286a0bd015...
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.