OpenTechnical

OT-2026-000041256

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, pulsed blow-off 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-2026-000041256) never changes.

Identity and time

Publication numberOT-2026-000041256 · never reused
Internal UUID01a0ae79-b143-753b-a846-7e8c7d73a17d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:26:45.980839Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041256
StatusPUBLIC

Content hashes

Canonical text7a95457520eb8c6fffaa0b943fb75475b1aa9933c6972a4a7f7f65985c667e95
Markdown658751f24744fe8926d348f9f6df7e6559b073efa07276047e43aa9396566817
PDF
Publication pagedd0b48bbb1258f686bf414430cf32d5b59be7c2414bedf56ef39b525def4d05c
Manifest0c761b38c798be96d60f5d1516d7c467505bf6c88fd943d39c75086664a80351

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
Signature3Tv8+czqe6haN4wkPOmb79SGhU6e4LytbUmTGl7UYzE9VC/CL/DdIa87qlYb+KU2aawIfhmLms5Z7hvotd3EAQ==
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

2026-09-17T11:17:13.647721ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041256
observed dd0b48bbb1258f686bf414430cf32d5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:13.627906ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041256/manifest.json
observed 0c761b38c798be96d60f5d1516d7c467...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:13.609854ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041256/publication.md
observed 658751f24744fe8926d348f9f6df7e65...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:13.590618ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041256/publication.txt
observed 7a95457520eb8c6fffaa0b943fb75475...
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.