OpenTechnical

OT-2026-000081905

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, three stage ejector, 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-2026-000081905) never changes.

Identity and time

Publication numberOT-2026-000081905 · never reused
Internal UUID01a0ae97-0f76-75d3-8106-ab1c230818c1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081905
StatusPUBLIC

Content hashes

Canonical textbb3b5043f4407374ac59461a3f080aacd40dd385d2cf6ae5b90f7e42cc73b0ba
Markdown555cedc321a2ffc69bd852edeed443e6914d96111fc549f9f6966541f411dfc0
PDF
Publication page5cdc5a869763fe4961d6da666f2d13669d255678626100ed446d3da088415c65
Manifest2323c2e596759a9104c3c84e0ef36c22c539fdfd79c8de98b47a5934097e8250

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
SignatureZtCjh7RuKUajOax+fu6NT380JVHvwxzyI6cVLfm5rAlc6fKsK+a+C5R5smq7BIUN4DVy+kWig9AO4ZxdAPLaCA==
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

2026-09-17T10:01:01.855900ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081905
observed 5cdc5a869763fe4961d6da666f2d1366...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:01.839777ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081905/manifest.json
observed 2323c2e596759a9104c3c84e0ef36c22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:01.823189ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081905/publication.md
observed 555cedc321a2ffc69bd852edeed443e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:01.805597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081905/publication.txt
observed bb3b5043f4407374ac59461a3f080aac...
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.