OpenTechnical

OT-2026-000028035

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, three stage ejector, pulsed 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-2026-000028035) never changes.

Identity and time

Publication numberOT-2026-000028035 · never reused
Internal UUID01a0ae72-a51f-73f9-83bd-03dca042b376 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028035
StatusPUBLIC

Content hashes

Canonical textb5498f80f436d850f0b79f3cd8e0030f4c9d2ff5f057a97f0162986901022912
Markdown37de95a7f898a59f48599224b0f47b39f215aea9b490b3331ffd15fea8f31b3b
PDF
Publication pageb489fb1bbcc2a8bee39758a19898238784a45fe7d84a5df5870fcfbef553904c
Manifest6e167488c78d7ad2a1340a9637cffe74474d55a555ca283d1a02129f82026104

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
Signatureir5xpdGWmxLJUHHStWG5j6WZPS8uanX8pKMGDEV5BIGXMjuBs1pHcBrvmjGNsC+dzOcSrJziu75jZ5fPwicOCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:42:21.394528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028035
observed b489fb1bbcc2a8bee39758a198982387...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:21.376350ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028035/manifest.json
observed 6e167488c78d7ad2a1340a9637cffe74...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:21.358945ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028035/publication.md
observed 37de95a7f898a59f48599224b0f47b39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:21.340377ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028035/publication.txt
observed b5498f80f436d850f0b79f3cd8e0030f...
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.