OpenTechnical

OT-2026-000017542

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000017542) never changes.

Identity and time

Publication numberOT-2026-000017542 · never reused
Internal UUID01a0ae6e-76ca-7efa-9e43-067c25f8d3cd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:30.105855Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017542
StatusPUBLIC

Content hashes

Canonical text400e778ebe9672b5e4716e187d677dc1c2cd6211f185bc3c357f8d9961294013
Markdown12d9efc15972c17c0ffd19a1a72970831acf7eccf3061d4989bd2dac159670ab
PDF
Publication page70748af7fa3c3424ebdf12ad1a325764f9c33561c376f21cf1b248524d64d81b
Manifestec5cd98b2b8f025a222823c97e9ae008d4f29801289f41929c44e21acaa1c0d6

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
Signature9VgMQXVnkuz8mqhGLd4cChVT1qqRagWCyIUgkTIntXNSHtthflDQGu7Ak/s5k0pLvN16KLI0FjqQaxx0r38QBQ==
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

2026-09-17T12:02:42.314748ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017542
observed 70748af7fa3c3424ebdf12ad1a325764...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:42.296508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017542/manifest.json
observed ec5cd98b2b8f025a222823c97e9ae008...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:42.276938ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017542/publication.md
observed 12d9efc15972c17c0ffd19a1a7297083...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:42.257992ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017542/publication.txt
observed 400e778ebe9672b5e4716e187d677dc1...
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.