OpenTechnical

OT-2026-000012401

Publication integrity record

Two cup vacuum gripper, two 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-2026-000012401) never changes.

Identity and time

Publication numberOT-2026-000012401 · never reused
Internal UUID01a0ae6d-39f6-7af2-b45b-8ed8a06914d1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012401
StatusPUBLIC

Content hashes

Canonical textef16df37941e8013c1a70f1671563286ce050094e551e6e05e17cc093bc67f6b
Markdownef55d1c9f8d1e4336f04cf309d67df8dd14f46001f339fe79d21d1c34e62d0c6
PDF
Publication pagec28f3ee36c47bfb9b2480eea3a44769f4a8d59e90b47bd78cd8e8f5ca81ba3c8
Manifest10e67de744f931b30ec27c3e7273d35d4279d312b9c1e78bfb1030a6f0bf8d9a

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
SignaturepE14F/veczhnsxzTDhhKqcr5mts205mNb7jUIFjQw0MdcUTpMxnq+YrTWJFQKq45vx00kKvg5913CnoONcGkBg==
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

2026-09-17T12:11:53.642525ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012401
observed c28f3ee36c47bfb9b2480eea3a44769f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:53.625204ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012401/manifest.json
observed 10e67de744f931b30ec27c3e7273d35d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:53.607597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012401/publication.md
observed ef55d1c9f8d1e4336f04cf309d67df8d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:53.589405ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012401/publication.txt
observed ef16df37941e8013c1a70f1671563286...
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.