OpenTechnical

OT-2026-000081294

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented after 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-2026-000081294) never changes.

Identity and time

Publication numberOT-2026-000081294 · never reused
Internal UUID01a0ae96-f374-73b5-9d39-a83cfac0e78e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081294
StatusPUBLIC

Content hashes

Canonical text163cb8c27e14452fba49b6c3b90cee6d9370a809e2cbe8ef4699581c0d4c174f
Markdownec70e3469a64d488e73996cb495e543374ec7c7e3e2105dbeb18e3f483665a9d
PDF
Publication page354234c9a2df1c885640864d23010635e27a383d9d40fc33f7567882be5aa008
Manifest4343a6ede240f36af13e1ce66c9d67ccb7270c1336acb64fc0bd105c23256cf3

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
SignaturewpFrKksjId91IV2MGGt9Sowm8JzB6y7pbggJIUU5yTrImudotaybLXahWiIXBbMIzp1pKbuYWF/OdMyUsCsaDA==
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

2026-09-17T10:01:24.214654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081294
observed 354234c9a2df1c885640864d23010635...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:24.195575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081294/manifest.json
observed 4343a6ede240f36af13e1ce66c9d67cc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:24.175576ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081294/publication.md
observed ec70e3469a64d488e73996cb495e5433...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:24.156268ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081294/publication.txt
observed 163cb8c27e14452fba49b6c3b90cee6d...
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.