OpenTechnical

OT-2026-000042902

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, pump fed, sustained blow-off after 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-2026-000042902) never changes.

Identity and time

Publication numberOT-2026-000042902 · never reused
Internal UUID01a0ae7a-c0d1-74ae-bcd4-8079c9720046 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042902
StatusPUBLIC

Content hashes

Canonical text9f958cb70634e9dd38b210e556748baf69e8e880f7e341a2be0e6ff376846b76
Markdown88f65e4aff7e9f7fa7dda9ae7368d61fd92cc20bc2cf7f650f5367231e421141
PDF
Publication page4f2286b276a853c927aa35efae94e2a1a4fc0a7fc4f4aca45ba0a2b1875470df
Manifestb1dc7893f7858b1cdff679678ea8f9af831776b913b41243a09916c80e36576c

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
SignatureyI6G42l+219/LIPhIJ8LM3ZPCebnsd8sxn6N2wjntOF+uFdcKu3dwSir0Wb8BP/wGZIjnCJ7vMP/M/3DeqCbCw==
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

2026-09-17T11:15:24.648724ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042902
observed 4f2286b276a853c927aa35efae94e2a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:24.631834ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042902/manifest.json
observed b1dc7893f7858b1cdff679678ea8f9af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:24.613298ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042902/publication.md
observed 88f65e4aff7e9f7fa7dda9ae7368d61f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:24.592804ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042902/publication.txt
observed 9f958cb70634e9dd38b210e556748baf...
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.