OpenTechnical

OT-2026-000028059

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, three stage ejector, 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-2026-000028059) never changes.

Identity and time

Publication numberOT-2026-000028059 · never reused
Internal UUID01a0ae72-a51f-7274-9ff7-599a3f323d1a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028059
StatusPUBLIC

Content hashes

Canonical text578ac2b9472eaa5e052efb0be9cb49bc9519df47ecdcc610d480c973e2c2a22e
Markdown5d1ba18b8f435416badc1c9157cb88b4810e113b5a917ad54a26910b89ddd4ce
PDF
Publication page730713455dea9a2c0fc40bfc963fc5b8facde27c95a1837c000f8a6c282bf2e5
Manifestf79879145cf33d587f3541df1d60878be3168453fde54e59f830165ff43a38fd

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
Signatureto2JQii4NkHNlP0fAeb0xtNhSVKL6Nrkv+MVyxOdf5cmy+VlWw3HIgE3aZ2nUJ/jmQEcim6PBY0RpGFnfr7PDg==
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

2026-09-17T11:42:23.593626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028059
observed 730713455dea9a2c0fc40bfc963fc5b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:23.576980ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028059/manifest.json
observed f79879145cf33d587f3541df1d60878b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:23.558972ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028059/publication.md
observed 5d1ba18b8f435416badc1c9157cb88b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:23.541184ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028059/publication.txt
observed 578ac2b9472eaa5e052efb0be9cb49bc...
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.