OpenTechnical

OT-2026-000015376

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, 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-2026-000015376) never changes.

Identity and time

Publication numberOT-2026-000015376 · never reused
Internal UUID01a0ae6d-ef49-7d62-8e5d-39adfed95577 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015376
StatusPUBLIC

Content hashes

Canonical text3ac47e980f0cce72bc1c566cd50b9fef1b8b27018759534d698c9418e908e385
Markdown26cfbbc473a098843a27d3334c8213b5697325684952221c3769755bd4cf7e25
PDF
Publication page514bc59b980f80b2daecfb869c9b6cc318dbe2968b85fa138677a877a4872fc6
Manifest158b5c830e10e367cb5461eb5b1e90bafd23b02cbd93fb5495beb9eefad029f6

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
SignatureRIwEXBWqV887tgYtwj8l3S5fSA1FBL7JQB57EtI+p0gwLbBI505nXaXbaEMFVcE0oVlxx4KYMDBs9tA07Jw3Bg==
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

2026-09-17T12:06:05.502405ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015376
observed 514bc59b980f80b2daecfb869c9b6cc3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:05.483861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015376/manifest.json
observed 158b5c830e10e367cb5461eb5b1e90ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:05.464766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015376/publication.md
observed 26cfbbc473a098843a27d3334c8213b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:05.445511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015376/publication.txt
observed 3ac47e980f0cce72bc1c566cd50b9fef...
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.