OpenTechnical

OT-2026-000018961

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, single stage ejector, manifold pressure sensor, 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-2026-000018961) never changes.

Identity and time

Publication numberOT-2026-000018961 · never reused
Internal UUID01a0ae6e-d522-7a60-be63-f8548b18ecab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018961
StatusPUBLIC

Content hashes

Canonical text85049c8f6d294879ee9cf53ebf65c395330b0c56501ea5a82c3f380373572c8f
Markdown1705b510c01e46f37e9f991c6506d56661efe8d69e19a2df7c20015851546564
PDF
Publication pageb161cf760622be2b61fd9eff64760ffc4e6c91a191e773246ed7e95e20d5d06c
Manifest95648daa3f3d5e7e70c871fab1486cb5a7fa26e30491b54216fe94ff0f3c32d3

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
SignatureuZ3jjiAP9f4f98zuxqXfI+Ry9mijD2I27UPQ69rGgmVYRMOSYB2ZrzuKUATPh/gi8YOkwBxvcyh1Tf3edk/8DA==
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

2026-09-17T11:59:38.150559ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018961
observed b161cf760622be2b61fd9eff64760ffc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:38.132102ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018961/manifest.json
observed 95648daa3f3d5e7e70c871fab1486cb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:38.113794ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018961/publication.md
observed 1705b510c01e46f37e9f991c6506d566...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:38.095541ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018961/publication.txt
observed 85049c8f6d294879ee9cf53ebf65c395...
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.