OpenTechnical

OT-2026-000078289

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, pump fed, pressure sensor per zone, 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-2026-000078289) never changes.

Identity and time

Publication numberOT-2026-000078289 · never reused
Internal UUID01a0ae95-7c27-7343-9e65-1058adb343ab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078289
StatusPUBLIC

Content hashes

Canonical text24e24c322d6fd6201a75c3bdec2066b7d278f3d294300d0f92fa017910facff3
Markdownbe4db15884c15459aee42192f1f9b287ec1b80089e2193bae9c8f86c2869adca
PDF
Publication page6445c5052c3d044d5c1ef2043ec64943970355b8a0a95b3d3a4610d59cb8bfaa
Manifesta9281b8f0806570f016d6067a6d0bea9ad3240e7558f4634f22271fad8c1ad3a

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
SignatureWDT/FpNWjjNPdRuYzUHmY6Cvvoxldj0Km06KGBGiWfzdjuAM7NNGGp0sB9dXMjBdyMixDqZul9yqbMB37GieBQ==
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

2026-09-17T10:06:15.164277ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078289
observed 6445c5052c3d044d5c1ef2043ec64943...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:15.145723ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078289/manifest.json
observed a9281b8f0806570f016d6067a6d0bea9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:15.125661ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078289/publication.md
observed be4db15884c15459aee42192f1f9b287...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:15.106412ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078289/publication.txt
observed 24e24c322d6fd6201a75c3bdec2066b7...
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.