OpenTechnical

OT-2026-000027449

Publication integrity record

Three cup vacuum gripper, three outlet manifold, pump fed, supply line pressure sensor, sustained blow-off 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-2026-000027449) never changes.

Identity and time

Publication numberOT-2026-000027449 · never reused
Internal UUID01a0ae72-6998-70bf-b9d5-01f9ac694a3e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027449
StatusPUBLIC

Content hashes

Canonical texta0a29b746bd71904f230bd5e85fc9274a21fe4b3eaedce1a4c909d7cfc3048c4
Markdownf75ebdeb1bc23ea41221566f702cecf1bd59fe849562747f718cc69cafa54bf8
PDF
Publication page8f5cbc50a0f25cd7b2f91952727ddfe1da7250fbcd52fa57edd741448ad07150
Manifestb1041906b6f3b90c12d97c38acb7651c9f365c30180f8732c5505bcdf74d3c74

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
SignaturesB4JkGFI1Yrn+WwW+HVrDcLUMW45l5MeB88NBI6mr8HLvOtILwKgcl/LXRrRY5z2I+kNc+zUM6M02unWB7GqBg==
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

2026-09-17T11:42:54.266189ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027449
observed 8f5cbc50a0f25cd7b2f91952727ddfe1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:54.248495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027449/manifest.json
observed b1041906b6f3b90c12d97c38acb7651c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:54.230143ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027449/publication.md
observed f75ebdeb1bc23ea41221566f702cecf1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:54.210998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027449/publication.txt
observed a0a29b746bd71904f230bd5e85fc9274...
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.