OpenTechnical

OT-2026-000073057

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, pump fed, supply line pressure sensor, 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-2026-000073057) never changes.

Identity and time

Publication numberOT-2026-000073057 · never reused
Internal UUID01a0ae92-c816-7655-9b83-c88e28100728 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:10.336919Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073057
StatusPUBLIC

Content hashes

Canonical texte5cd1df49ff5f4473d74e79834da17590aa437925a69f60cb8577e5ec78a3159
Markdownc83e48805cacefb309d09ed77dc67e7a37e358cd40e241a318aa4557be792241
PDF
Publication page8bebfcc3f4948e1b5499071bd8691bd2ca5689f0c53dd63959568c31e44809cf
Manifest5ec3641d48f2b59044aaebfe047259a419ac9ecfe86a359da58f7f8a43d5748e

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
SignatureigD0hV982O8Y2C8zY/P1XHOBvHCpRbI5ocmUKlRWNRXEEDyG1OPkpTQSksuiInyOkMWmPgJBvzsnjWT+02uvCQ==
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

2026-09-17T10:22:00.198524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073057
observed 8bebfcc3f4948e1b5499071bd8691bd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:00.180364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073057/manifest.json
observed 5ec3641d48f2b59044aaebfe047259a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:00.161733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073057/publication.md
observed c83e48805cacefb309d09ed77dc67e7a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:00.142975ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073057/publication.txt
observed e5cd1df49ff5f4473d74e79834da1759...
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.