OpenTechnical

OT-2026-000029383

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, three stage ejector, 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-2026-000029383) never changes.

Identity and time

Publication numberOT-2026-000029383 · never reused
Internal UUID01a0ae73-5e20-7add-89ba-1816b4dd4313 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029383
StatusPUBLIC

Content hashes

Canonical text515ceafd8b5f72b063d577dd32142a003bfbdc9b5a293c07db77a2c628873e0d
Markdown39b1cd2cd7c0c423d50cf25763e9849abcb2f22ab15397120213a2e15fee0dac
PDF
Publication page6fd10288caca93f2dbb93b5ded2e6e8f994d0c4912ea3d39a6125c28b62dcfce
Manifest9b87550da1ed88fd353c9db14f31aad9508eccd16ee15544d118c80bf446bc39

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
SignatureaXYcmF23QpqZv/brQjpaHz7Ijf9GN0t8+ULNTihuBy2vtNG5LCE5NMRTPbS3DxCdfzNcNVkNU8jEmKtbrd3dBA==
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

2026-09-17T11:38:56.937116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029383
observed 6fd10288caca93f2dbb93b5ded2e6e8f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:56.916197ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029383/manifest.json
observed 9b87550da1ed88fd353c9db14f31aad9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:56.897605ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029383/publication.md
observed 39b1cd2cd7c0c423d50cf25763e9849a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:56.880759ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029383/publication.txt
observed 515ceafd8b5f72b063d577dd32142a00...
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.