OpenTechnical

OT-2026-000070573

Publication integrity record

Four cup vacuum gripper, four zone face, pump fed, 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-2026-000070573) never changes.

Identity and time

Publication numberOT-2026-000070573 · never reused
Internal UUID01a0ae91-5460-70df-ab69-4cb538c231ea · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:35.055348Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000070573
StatusPUBLIC

Content hashes

Canonical text8f1e948c8923ca47d0c8c52b3cb9f613e1acdd12db3593629a389acecb23328c
Markdownad69d8ceb4d2833c3b0fce49caffd9e3decbcaf43a82b5c20ba1eab345653df9
PDF
Publication page1c94c4d1b8075e27bdc11fe321f7d5014330888e9054e7cb9781ef252386c892
Manifestc8e806d3afcf916f2c064ea15261358608eee11a75580b09bdc3ccf0483a28e6

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
SignatureB1ToovsRtYJmd5JBZ7Dcm2s3HDsrtQLawPKFsRYCZZpSfzrE+rHapeBDA7sG9AS61RvbvI6LOPJGmUKA3IiOAw==
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

2026-09-17T10:26:25.491429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070573
observed 1c94c4d1b8075e27bdc11fe321f7d501...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:25.474499ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070573/manifest.json
observed c8e806d3afcf916f2c064ea152613586...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:25.456079ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070573/publication.md
observed ad69d8ceb4d2833c3b0fce49caffd9e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:25.438346ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070573/publication.txt
observed 8f1e948c8923ca47d0c8c52b3cb9f613...
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.