OpenTechnical

OT-2026-000078766

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, vented 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-2026-000078766) never changes.

Identity and time

Publication numberOT-2026-000078766 · never reused
Internal UUID01a0ae95-ccbc-713e-9627-587076b37a4b · 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-2026-000078766
StatusPUBLIC

Content hashes

Canonical textc85618eec6daaab0101028e4ef7a57cbadcbabfc636ba7ccf1eb18af506b6ade
Markdown62125c6e9b18cd397805aed2086cc249b5fed5df785aa526e029766fba293796
PDF
Publication page932f182458fa1ec8170c2d42b5124b6c53e1a84e857ddc5904e9f9a1be57af65
Manifest318435b7ea4488f8ca66d01a1249535945e23c2375020e2e6a12f5d5b98c24de

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
SignatureQHJhDneEMpe2pNNUnqztfDCvjMduxtONVO0Uvr0IoGV6pmUaLq5L36JapQ5eiSIKMPxTJFBVfpv1p2rEN410DA==
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

2026-09-17T10:05:20.882902ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078766
observed 932f182458fa1ec8170c2d42b5124b6c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:20.864418ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078766/manifest.json
observed 318435b7ea4488f8ca66d01a12495359...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:20.845745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078766/publication.md
observed 62125c6e9b18cd397805aed2086cc249...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:20.827443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078766/publication.txt
observed c85618eec6daaab0101028e4ef7a57cb...
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.