OpenTechnical

OT-2026-000087683

Publication integrity record

Four bellows cup vacuum gripper, four zone face, single stage ejector, 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-2026-000087683) never changes.

Identity and time

Publication numberOT-2026-000087683 · never reused
Internal UUID01a0ae9a-cd54-7e14-8546-e9ada4c9deff · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087683
StatusPUBLIC

Content hashes

Canonical texte20e16f8b1f9d020d39f69485057e6126fd01b5eb4f2b568f3f3a37ea23d21c3
Markdown41772fcb4b0896d8713616eb8ea80d981164bc85eec6600f594273867f8ca7a5
PDF
Publication page041227855d40dd34b8c5ffd26c5824329b0b053854a382c1fe2c0cc51aad284b
Manifest8d2c0a595813779f983c52d49059bbe518efdb92239576fc26af5a14eec095c6

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
SignatureZYoQq1vM7kV5vzL7VCLxqWrIg9KX9YdL3Y5uMXo8LKRYHK1u5MocTAaxcFuagEGw8BUZhn29d2eukWEHuHNRCw==
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

2026-09-17T09:51:07.854296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087683
observed 041227855d40dd34b8c5ffd26c582432...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:07.839201ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087683/manifest.json
observed 8d2c0a595813779f983c52d49059bbe5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:07.824640ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087683/publication.md
observed 41772fcb4b0896d8713616eb8ea80d98...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:07.808748ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087683/publication.txt
observed e20e16f8b1f9d020d39f69485057e612...
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.