OpenTechnical

OT-2026-000004736

Publication integrity record

Bellows cup vacuum gripper, two zone face, plant vacuum fed, vented before set down

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-2026-000004736) never changes.

Identity and time

Publication numberOT-2026-000004736 · never reused
Internal UUID01a0a921-b138-7602-ba3d-1ae874529c18 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:32:32.699492Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004736
StatusPUBLIC

Content hashes

Canonical text1cc50c7721ea082d9a7b5fb386e6979a94ba74a844770e1473a36a5e1c830c76
Markdown8ff0cdde0568912dc447521f1f9de743f90689a01553e7d20c3fd11b16aa6ddf
PDF
Publication pagec7aa350cba908d94b20368fff96287771d228d60e9cfa2ceef31dcdd73b5068a
Manifesta6d7b3ce019a2031fdd0b46b99d6aab95001f5bb4ef43ccde2cf8dc58f6171d4

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
Signature/7txvfsZVzt33UiMfCyZge0PixlOpZwgpG2u62n4/fCk6Uze92C7OCRhKqkpPy9lDypJpUwkC3o1k0+ADosZBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:40:24.410947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004736
observed c7aa350cba908d94b20368fff9628777...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:24.397682ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004736/manifest.json
observed a6d7b3ce019a2031fdd0b46b99d6aab9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:24.386027ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004736/publication.md
observed 8ff0cdde0568912dc447521f1f9de743...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:24.371937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004736/publication.txt
observed 1cc50c7721ea082d9a7b5fb386e6979a...
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.