OpenTechnical

OT-2026-000067709

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, vented after 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-2026-000067709) never changes.

Identity and time

Publication numberOT-2026-000067709 · never reused
Internal UUID01a0ae8f-6bdb-7614-8b42-54cf4a79b7cb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067709
StatusPUBLIC

Content hashes

Canonical textbbbf28f3c05f2d02c432a36174a8fe7da3a25a132a4958625136fda888ed8fa1
Markdown901f10c410660ded7cc55d67c405c1ec29cad9a94938f638e5206a2328a8fb82
PDF
Publication page2d7b9cea7b063bda9d32539234004c58a8da7acdddcddb4ede7edfa14f532337
Manifest818c6191ec8cf5681091ab8bc6f2cbac29483e93877c344385128689a6e3a792

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
Signaturegi4Dxht1RgsUcf+uaq63AlQ/L4vWDrRT7N0whr1NLXlOKZcrRMNZX6AcFKes4YI7mLyrz0ZZV6JkMDI+pOfvBA==
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

2026-09-17T10:32:03.389170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067709
observed 2d7b9cea7b063bda9d32539234004c58...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:03.373003ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067709/manifest.json
observed 818c6191ec8cf5681091ab8bc6f2cbac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:03.355873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067709/publication.md
observed 901f10c410660ded7cc55d67c405c1ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:03.339092ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067709/publication.txt
observed bbbf28f3c05f2d02c432a36174a8fe7d...
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.