OpenTechnical

OT-2026-000028953

Publication integrity record

Two cup vacuum gripper, two outlet manifold, two stage ejector, 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-2026-000028953) never changes.

Identity and time

Publication numberOT-2026-000028953 · never reused
Internal UUID01a0ae73-2a9e-7e3b-9983-1f76012a4954 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028953
StatusPUBLIC

Content hashes

Canonical textf03cd8c9211cce440b15881d4d13eee5b5ceab28169af3bffc28f1252d0cd522
Markdown2061e025d9b73a094a9465b06195775f94bd785670f20538938f9932b87231a1
PDF
Publication page4988d64ab5a5b4c0489b9ee0a6e9ea9088305e21e23152f003227300f749faf0
Manifest129df345b1091603b5647213fdc978bcf67545543a4d2078c94cd49c9b6531ad

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
SignatureejG09KAmyBcveNQYRgGu2eNLXlnDLfpHGdeLrPtjKy5u6HksMtN3ix5RRUdPo1c5Uad79JXS4dyGPoqTWeNECw==
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

2026-09-17T08:20:26.011437ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028953
observed 4988d64ab5a5b4c0489b9ee0a6e9ea90...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:25.992202ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028953/manifest.json
observed 129df345b1091603b5647213fdc978bc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:25.974739ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028953/publication.md
observed 2061e025d9b73a094a9465b06195775f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:25.958156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028953/publication.txt
observed f03cd8c9211cce440b15881d4d13eee5...
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.