OpenTechnical

OT-2026-000029646

Publication integrity record

Two pad foam vacuum gripper, two outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, sustained 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-2026-000029646) never changes.

Identity and time

Publication numberOT-2026-000029646 · never reused
Internal UUID01a0ae73-5e23-7b15-9df6-22426ce6257b · 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-2026-000029646
StatusPUBLIC

Content hashes

Canonical text1a9f3a9119418d5683109b25c2e910dcd3d7d32be3c2a01a2e0d0fdb090880c1
Markdown4b42c2e5857dfd5181c015c87049766f7a5b5c36034c6b53b1adc5706d371baf
PDF
Publication pagebf8e4c3e221b1bee509ffaa4ca79c1ec044f7292c83b6425294b391d882adb1b
Manifest473a6396112a754c8dc09cbd5cc3dfc11a64dc2288573aab472d21c70438d203

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
SignatureVlgTSkhYcKWgtrqDlGIhcmvbHvBWxaM9/z4Tc0HNOIZV4oXRmRL1vGXSzB0g3wfL4KfEmPF4RzVF2kGPxQuXBA==
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

2026-09-17T11:39:21.577463ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029646
observed bf8e4c3e221b1bee509ffaa4ca79c1ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:21.560297ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029646/manifest.json
observed 473a6396112a754c8dc09cbd5cc3dfc1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:21.541877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029646/publication.md
observed 4b42c2e5857dfd5181c015c87049766f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:21.523971ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029646/publication.txt
observed 1a9f3a9119418d5683109b25c2e910dc...
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.