OpenTechnical

OT-2026-000061378

Publication integrity record

Foam pad vacuum gripper, common isolation valve, plant vacuum fed, 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-2026-000061378) never changes.

Identity and time

Publication numberOT-2026-000061378 · never reused
Internal UUID01a0ae8b-7b42-7a10-b995-45741d809b89 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:11.808334Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061378
StatusPUBLIC

Content hashes

Canonical text054e22de95a473818ad07911d66b361967df4d83c6ad801c4b2b98e7a769b4de
Markdownba1a09aea5be986714e3e7bc4565ead84f426028097d6da3ffe05a63b9377c75
PDF
Publication pagedc4d4f50979713f74d8c8f7823ca843cac220a6b13d07f239f183f0a006821c5
Manifest492a38240c32b76f62638e11332285cef656636ac4403fc419a5b97ff2471b7c

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
SignaturelF9wN9oeQ2H4ivMxxN0eb8HEkjU/NDSn054eZd7AmijUqA++aipthWpt3Yl+mHc3y1WpFBBCfHKc4fr9rgkECg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:41:14.144998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061378
observed dc4d4f50979713f74d8c8f7823ca843c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:14.125716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061378/manifest.json
observed 492a38240c32b76f62638e11332285ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:14.105018ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061378/publication.md
observed ba1a09aea5be986714e3e7bc4565ead8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:14.086261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061378/publication.txt
observed 054e22de95a473818ad07911d66b3619...
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.