OpenTechnical

OT-2026-000073531

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, single 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-2026-000073531) never changes.

Identity and time

Publication numberOT-2026-000073531 · never reused
Internal UUID01a0ae92-efb9-70da-9dc5-2efa6cc1d2c7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073531
StatusPUBLIC

Content hashes

Canonical text80e4673047eaf1194b4048ed21b42cb23446434fa34eb9168d2749e1cf657bf7
Markdownd5c605b5e587409e131c0865b8933437f45127ef53e5be2e36ef056d290b0a69
PDF
Publication page5ba8e453ad776c916cfdf9bc075b519f01ee353c0ed23ac664e2280682cb788c
Manifesta236508d7f0cac0c839df473a6c654963c53ee04f11dbabdecf659a45ad243ce

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
SignatureBV2lp3Eb2B2lP58X4jDt1DZwbGN7cgwApGJ6xkl2cybX4wd4XTXg8E0SssMwrA4PWjXbepoestBrwZqB/4QxCQ==
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

2026-09-17T10:21:42.227287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073531
observed 5ba8e453ad776c916cfdf9bc075b519f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:42.210530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073531/manifest.json
observed a236508d7f0cac0c839df473a6c65496...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:42.192758ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073531/publication.md
observed d5c605b5e587409e131c0865b8933437...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:42.176077ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073531/publication.txt
observed 80e4673047eaf1194b4048ed21b42cb2...
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.