OpenTechnical

OT-2026-000089904

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, pump fed, manifold 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-2026-000089904) never changes.

Identity and time

Publication numberOT-2026-000089904 · never reused
Internal UUID01a0ae9c-428d-701d-9f23-29988e4dadaf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089904
StatusPUBLIC

Content hashes

Canonical text2c070098468bb833ce11bf8ee520e844d256f2176a42c776eea6f596ebe036ba
Markdown95c483f96573a01b1d5baff7c6ce68a2b176a5a1a4687e83a1d5509942dc7ea1
PDF
Publication pagea43a4abf3f4f13629692f0b121df5bc324edac1ba926136e8d28abe13517b797
Manifestffb2d9cc72455c007b8a396e5cab00fe3bdbfc36ec73f6de3f100f73034cff90

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
SignaturerqtP/xEGX00c/s3bI9OxBvXJ8x1EszsL0A+Aq6Zt+eE7oocluclkLe7LNpQuWddr5C8FUkIycbdLW3Aw+lBWCA==
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

2026-09-17T09:45:10.283718ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089904
observed a43a4abf3f4f13629692f0b121df5bc3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:10.265473ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089904/manifest.json
observed ffb2d9cc72455c007b8a396e5cab00fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:10.248175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089904/publication.md
observed 95c483f96573a01b1d5baff7c6ce68a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:10.231948ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089904/publication.txt
observed 2c070098468bb833ce11bf8ee520e844...
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.