OpenTechnical

OT-2026-000103515

Publication integrity record

Three cup vacuum gripper, three zone face, two stage ejector, pulsed blow-off 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-2026-000103515) never changes.

Identity and time

Publication numberOT-2026-000103515 · never reused
Internal UUID01a0aea4-e461-7fd2-b936-93c408468e97 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:57.105586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103515
StatusPUBLIC

Content hashes

Canonical text8f7f1b08aa99c9c3f4006097a61726ea288b3e9efebaa44f7772f29f8920ad93
Markdownb936559d88b67d1e2982507412b51712afc9f232d18d1f7d65c983b121b06f94
PDF
Publication page10b7aace8fa5787106ae78a5ebf956844a61537907ae8d85abb14fc85f5d3213
Manifest344b07915fc3ed334552ccd84cc38402566a2052e20c4130069da71e5ff046eb

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
SignaturesP7LOdwJhnk+lTBcXCbhZ2hTNMnAJBmmQuSBSQSww2nouhDuvP19edQpEsp1TBJPSoghYzyno56J7QUSoLwoBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:22:17.075667ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103515
observed 10b7aace8fa5787106ae78a5ebf95684...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:17.058903ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103515/manifest.json
observed 344b07915fc3ed334552ccd84cc38402...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:17.041115ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103515/publication.md
observed b936559d88b67d1e2982507412b51712...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:17.022847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103515/publication.txt
observed 8f7f1b08aa99c9c3f4006097a61726ea...
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.