OpenTechnical

OT-2026-000063850

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000063850) never changes.

Identity and time

Publication numberOT-2026-000063850 · never reused
Internal UUID01a0ae8d-53b7-7ce0-96fb-51b3aa9ffbc4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:12.763906Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000063850
StatusPUBLIC

Content hashes

Canonical text2fc31252b4b85d27b62acdd424e19d2e55d6244ea678ad088bf03880d6e43e6a
Markdown1b6b46293afc6be3850f391cf206dd32b15343d53b1e0f224dabbdd07e86394e
PDF
Publication pagedb7aa3de3b44a3ee14bc0ec5553f507a163756b4a3f5bc409728d35018046f44
Manifest6e39f568a44bbb2c85cbc00251bca95bcbc6f34068ee7b4ab00ce10c0a5bb65d

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
SignatureTQm+f8Ka2QJQkkoqexFwprR1hv5+oN7jxw1aetsPnbFqlDZn+Ik5GKU4aR/XSknQk+/NHqf/tmsKmBOReMaXDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:36:52.840795ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063850
observed db7aa3de3b44a3ee14bc0ec5553f507a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:52.822023ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063850/manifest.json
observed 6e39f568a44bbb2c85cbc00251bca95b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:52.800588ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063850/publication.md
observed 1b6b46293afc6be3850f391cf206dd32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:52.780663ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063850/publication.txt
observed 2fc31252b4b85d27b62acdd424e19d2e...
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.