OpenTechnical

OT-2026-000074257

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, three stage ejector, manifold pressure sensor, pulsed 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-2026-000074257) never changes.

Identity and time

Publication numberOT-2026-000074257 · never reused
Internal UUID01a0ae93-7178-7944-821f-1d3eb0d17a13 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074257
StatusPUBLIC

Content hashes

Canonical text35848896e7e0b01476eaef7a87bc93f64cb1406fde96ff1a5462c3e5b5de48c5
Markdowna9976f8e7c373af1db54a6a2acd62571207de0d1531c57e293e72bc835ea3a4d
PDF
Publication pagecdd036ccd37e451b377065aa554539d511ef7f96e9f1bbb923f0932281eeb8db
Manifest853a949661c8c29a344cbf1d25f5a2f1c191e323f9389d4493ee41712f218336

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
SignaturehwHWVyJdhPjgI1UKDE4B0CwgPZnbnh4ZBgPjyUGikyUH27kNiGqHsN2Xj9315Iv3ROGBVfqimfynyJJqELN3BA==
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

2026-09-17T10:19:09.441989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074257
observed cdd036ccd37e451b377065aa554539d5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:09.424222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074257/manifest.json
observed 853a949661c8c29a344cbf1d25f5a2f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:09.406129ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074257/publication.md
observed a9976f8e7c373af1db54a6a2acd62571...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:09.387486ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074257/publication.txt
observed 35848896e7e0b01476eaef7a87bc93f6...
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.