OpenTechnical

OT-2026-000103445

Publication integrity record

Two bellows cup vacuum gripper, two zone face, plant vacuum fed, pulsed blow-off 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-2026-000103445) never changes.

Identity and time

Publication numberOT-2026-000103445 · never reused
Internal UUID01a0aea4-e460-71f8-8e63-9452b3b1c9cd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:57.105586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103445
StatusPUBLIC

Content hashes

Canonical text96ccd1421ba67a76771692c4abbf6c2cfa7dee9670bd0687c6e8d4938fe14265
Markdown4be46d109746237abad0146b8f9699fd971f1ac0f7e3af292b34721e9c76c251
PDF
Publication page244ed0c2d61af5f2d0e92bd967cc3f4c4df3895b6d7d12453eee5d4f2ab5bc5f
Manifestabfcb840624607536b7820a1f4a7134dc91882c2200524063031b8eca60453b0

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
SignatureYPy6N/nBmYnmDVd5emMfPrT4MexOTTwba1zeCdaFMwHRTj83nod92XgVZz09ZXa/mFcWxyzHHxRZlg+qhxsjDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:22:11.993617ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103445
observed 244ed0c2d61af5f2d0e92bd967cc3f4c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:11.976793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103445/manifest.json
observed abfcb840624607536b7820a1f4a7134d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:11.959567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103445/publication.md
observed 4be46d109746237abad0146b8f9699fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:11.938490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103445/publication.txt
observed 96ccd1421ba67a76771692c4abbf6c2c...
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.