OpenTechnical

OT-2026-000031420

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, sustained blow-off before set-down

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-2026-000031420) never changes.

Identity and time

Publication numberOT-2026-000031420 · never reused
Internal UUID01a0ae74-87ad-7e8f-badf-eaf793b19a89 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031420
StatusPUBLIC

Content hashes

Canonical text3c3676a9deaf9402ff527dee26730d48c3b7ae680f493cc04588910f07b12d9d
Markdown93463ce4c69e27422b8282993d417a723db77ac7b2795fd585725fa6454d85aa
PDF
Publication page3bc5d7cac08e164eb3a136baa41b8e4f317d915466ad52b948dc20fd5f1b6357
Manifest4380318cd768923676ee45b68bc445018444e3634018467764317cc5ab436a0e

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
Signature1Io4QptrPoBWneQjgwU4ovmy5a6ipBuC0GOrD45tBSoKXF5VCoev0njFgyM/hWdC8gPYvioIif1kZX+DABAyBA==
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

2026-09-17T11:36:08.261337ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031420
observed 3bc5d7cac08e164eb3a136baa41b8e4f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:08.242859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031420/manifest.json
observed 4380318cd768923676ee45b68bc44501...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:08.225153ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031420/publication.md
observed 93463ce4c69e27422b8282993d417a72...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:08.209013ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031420/publication.txt
observed 3c3676a9deaf9402ff527dee26730d48...
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.