OpenTechnical

OT-2026-000028417

Publication integrity record

Six cup vacuum gripper, six outlet manifold, single stage ejector, manifold pressure sensor, sustained 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-2026-000028417) never changes.

Identity and time

Publication numberOT-2026-000028417 · never reused
Internal UUID01a0ae72-e2f6-77ba-9dde-1f2682191af9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028417
StatusPUBLIC

Content hashes

Canonical text95497ed24dfdd5dc8e413bf0bb4c2a62b3ea13c9dc9d5c74dedd5bfb80958078
Markdownf150d8a017fbaf5d9519381e383cec7d04160b943644368ce49070bd458f05fe
PDF
Publication page41146b223296c81bc5cebbab7684295cdd19a2dc0d694a5246d7792491d5b0b9
Manifestac1b181fac68c188855ad31030ab168eb24248c1463c955b7c3ef9e10881a814

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
SignatureAfXz7icRshStJDANsidu+FYeOD813pot45uLDkO2Gv+V+hDMsAtAIgccG7vI//VGfaPPkJUy98QVeBeJghAGCA==
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

2026-09-17T11:40:32.947368ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028417
observed 41146b223296c81bc5cebbab7684295c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:32.924458ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028417/manifest.json
observed ac1b181fac68c188855ad31030ab168e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:32.907827ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028417/publication.md
observed f150d8a017fbaf5d9519381e383cec7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:32.890194ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028417/publication.txt
observed 95497ed24dfdd5dc8e413bf0bb4c2a62...
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.