OpenTechnical

OT-2026-000012633

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, 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-2026-000012633) never changes.

Identity and time

Publication numberOT-2026-000012633 · never reused
Internal UUID01a0ae6d-5561-7a8d-ad7f-1b61546642bd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012633
StatusPUBLIC

Content hashes

Canonical textf62ee21a2db48c28967df92b70b29ef3f614d27cf33ebe56fa348818cba53ae1
Markdownae4aee3fe0e387233ef5fee4f0480b4ded0e1a9477e99ed40dfac48be3d1d94b
PDF
Publication page78c67b09fe646de4e5cd3c765590ebb2b9f13852525c48ef2766083ecb5d0603
Manifest5840aba91d9f853f8fb6cf92217cdbf6d4a862cbf4d59960849c83190d199a53

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
SignatureIxJeqoMFgH2/eclyuDzjqU3x9CPmyruhYX58dAPv/mKFK0u3W6IOtbbrgrVBM6tvZhXrCRaAQtJ9erjxY1bgCA==
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

2026-09-17T12:10:09.888052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012633
observed 78c67b09fe646de4e5cd3c765590ebb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:09.869825ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012633/manifest.json
observed 5840aba91d9f853f8fb6cf92217cdbf6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:09.850492ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012633/publication.md
observed ae4aee3fe0e387233ef5fee4f0480b4d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:09.832146ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012633/publication.txt
observed f62ee21a2db48c28967df92b70b29ef3...
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.