OpenTechnical

OT-2026-000089281

Publication integrity record

Foam pad vacuum gripper, four zone face, six outlet manifold, pump fed, supply line pressure sensor, sustained 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-2026-000089281) never changes.

Identity and time

Publication numberOT-2026-000089281 · never reused
Internal UUID01a0ae9b-db01-7fbc-9692-022154f0b549 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089281
StatusPUBLIC

Content hashes

Canonical text8daaf8a6793dadcbf0b2bc22029ad3ff7293a4cb4710f7d9741cc26a805833ac
Markdownfe4b17e8de660039c70ea7e67ad2c09069523f8250054f93d4a05b8f3c022a85
PDF
Publication pagea1d877b40e746c3d5f74b3d03c9ed03e96e4a6334015f678db65d17ec3c62b97
Manifest934ba54bb203f3c5a18ca657c1c035ce7dcf6363bf2e0af36d9701abce43f263

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
SignatureC4ChDETDlnezjPwny2Xasm3N6YrU9Rn0CETRLsEgtgBclqd0lLAP+mCLHSDD9xQE/IMjMsv8rIzj84xQdrqjDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:47:19.549093ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089281
observed a1d877b40e746c3d5f74b3d03c9ed03e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:19.531480ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089281/manifest.json
observed 934ba54bb203f3c5a18ca657c1c035ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:19.513932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089281/publication.md
observed fe4b17e8de660039c70ea7e67ad2c090...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:19.497362ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089281/publication.txt
observed 8daaf8a6793dadcbf0b2bc22029ad3ff...
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.