OpenTechnical

OT-2026-000041914

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, pump fed, sustained blow-off after 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-2026-000041914) never changes.

Identity and time

Publication numberOT-2026-000041914 · never reused
Internal UUID01a0ae79-e8a6-71dd-a71c-ca818953dad3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:00.220789Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041914
StatusPUBLIC

Content hashes

Canonical text289753aeac2c7cd0ee31630f1e48e52bfd25a7dfc8022f03e5f267535d8f3b8e
Markdownd4f0d2144d4eb1da3e17ff8e9dc3802cc803566b5c1bdc8731bfe6dc945aa769
PDF
Publication page4d5b33f28c1f6ceddbd9dbd176f97bc9eeb36a42f14e3517aba5076948215ede
Manifest856a9fb7e59880fb5c4b55dabda45cd397b5c58e3d7039ea6dd5d2e6e22167f2

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
Signature9ryK5v+5Hlar4dPfoXWEkTiYhFHIfdPrw5vRPxOC3CYLvmSG2zfrASKDeuSzdt1QYkTKU3V5BSR9yICNSkURAg==
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

2026-09-17T11:16:47.884153ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041914
observed 4d5b33f28c1f6ceddbd9dbd176f97bc9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:47.864913ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041914/manifest.json
observed 856a9fb7e59880fb5c4b55dabda45cd3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:47.846354ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041914/publication.md
observed d4f0d2144d4eb1da3e17ff8e9dc3802c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:47.827297ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041914/publication.txt
observed 289753aeac2c7cd0ee31630f1e48e52b...
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.