OpenTechnical

OT-2026-000078768

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, vented 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-2026-000078768) never changes.

Identity and time

Publication numberOT-2026-000078768 · never reused
Internal UUID01a0ae95-ccbc-7e45-b3c4-1b92458fcfb9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:28.017032Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078768
StatusPUBLIC

Content hashes

Canonical texte78da892cf5a82040e6dfe5251cae2da2ae5511911629076d1e52a018c136b12
Markdowne60d8fd5a701826ec53d0366bc6988c0efba5aa4216f075b38a288f8ef5b6b58
PDF
Publication page777247ecc02c22ab64a69460288c4ac1b23150ed5086d74c8b77fc0a326fc768
Manifest751db9b31fd2ac1ae036b27b4b7da72f4c8f773e4a8635259ae0cf6ee16bafab

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
SignatureUWY2ZirvkcjZvqGzNJZORipTKud8LPrg968zOtNUSCVWzp9W7AskwDatUQIJd0ouFYr8Mn/1J0pl2x62fPycAg==
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

2026-09-17T10:05:33.329200ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078768
observed 777247ecc02c22ab64a69460288c4ac1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:33.312575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078768/manifest.json
observed 751db9b31fd2ac1ae036b27b4b7da72f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:33.294583ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078768/publication.md
observed e60d8fd5a701826ec53d0366bc6988c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:33.277393ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078768/publication.txt
observed e78da892cf5a82040e6dfe5251cae2da...
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.