OpenTechnical

OT-2026-000027291

Publication integrity record

Three bellows cup vacuum gripper, three zone face, pump fed, 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-2026-000027291) never changes.

Identity and time

Publication numberOT-2026-000027291 · never reused
Internal UUID01a0ae72-6996-75ee-b671-7dcefb52ae49 · 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-2026-000027291
StatusPUBLIC

Content hashes

Canonical text32e85ed1d214e1c3d9ee784105f62a93fc4a70711266e144f2f6df14ba1354b6
Markdown50f8e04c6b73fb78f5618b50df86672ff13c08af54da693f69837ec18d395d77
PDF
Publication page95716b868e41ba5d421abee5ea8e1654eaebbc9e2dcafe48796e57853ce5eeec
Manifestc3d152ab768ea02284ac19f0ceef03713cf9e25ebe2f6716aa3a44b05602d2be

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
Signature0KKWshLmVvt9Ah6bgvORjZu1pvvNcWcPLQSSeT5UepgpskkBdEe9tf4bxcNM3M9X/BjapLhQkUtMc0AOuX/UCA==
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

2026-09-17T11:42:40.785095ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027291
observed 95716b868e41ba5d421abee5ea8e1654...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:40.766928ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027291/manifest.json
observed c3d152ab768ea02284ac19f0ceef0371...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:40.749841ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027291/publication.md
observed 50f8e04c6b73fb78f5618b50df86672f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:40.732053ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027291/publication.txt
observed 32e85ed1d214e1c3d9ee784105f62a93...
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.