OpenTechnical

OT-2026-000030082

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, 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-2026-000030082) never changes.

Identity and time

Publication numberOT-2026-000030082 · never reused
Internal UUID01a0ae73-ac4a-74a7-841b-23ed68d30441 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030082
StatusPUBLIC

Content hashes

Canonical textc388b87e6c188be4d5939882d4f06dfb15bc3db4fed502b9e961577a03204b65
Markdown9f8a43888adc60d9ca08d5c2021f4ae494cc7f43491fef2caaf18a568d333f31
PDF
Publication page5b8022f3695d87e715457ce05c8cc4c97c4de6c1c8d80a440f6e1104d305af1d
Manifest95ae4446b5c986efdde78e7233789f6bd52c162fe3fc0db574bddf665489da7d

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
SignaturepLfaOG0APD1d1+J0R+p4vDKHsskoJhkuyyWv7W5Z2ZieZ476Y/eTZQRtA7PnPgl590kRWx4mBGqP9SkoX0tLBQ==
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

2026-09-17T11:38:49.784461ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030082
observed 5b8022f3695d87e715457ce05c8cc4c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:49.766635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030082/manifest.json
observed 95ae4446b5c986efdde78e7233789f6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:49.749816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030082/publication.md
observed 9f8a43888adc60d9ca08d5c2021f4ae4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:49.728784ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030082/publication.txt
observed c388b87e6c188be4d5939882d4f06dfb...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent