OpenTechnical

OT-2026-000042518

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, plant vacuum 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-2026-000042518) never changes.

Identity and time

Publication numberOT-2026-000042518 · never reused
Internal UUID01a0ae7a-c0cd-7e40-90e6-7f422da714f5 · 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-2026-000042518
StatusPUBLIC

Content hashes

Canonical text81d64fb4b781bd85a7e991c3b1f49447150e9281fdbfc3adbff20b0833493c69
Markdown09c94878cea10e7ff123f595bf962149df43e95c0245f1b980a759be2554e3d2
PDF
Publication page594f523dd5fbfb2517b5fc2fad0ba7c6b385374e3dc61dac8c2935d80e534b31
Manifestdcd0dba68f4d40e026fbe43f2e8438f99bee2ddf4864296457abc5ed6ee2ff25

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
SignatureLfDcN1+OmtIji1/kK6QsofN54e6c0BHbqcAqiMMs8H8W0ElHrJ61obre3B+gt7JqxTr/pevE7Jsd0f7lEox7BQ==
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

2026-09-17T11:14:06.077495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042518
observed 594f523dd5fbfb2517b5fc2fad0ba7c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:06.055894ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042518/manifest.json
observed dcd0dba68f4d40e026fbe43f2e8438f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:06.035258ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042518/publication.md
observed 09c94878cea10e7ff123f595bf962149...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:06.014550ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042518/publication.txt
observed 81d64fb4b781bd85a7e991c3b1f49447...
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.