OpenTechnical

OT-2026-000067227

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, two stage ejector, pressure sensor per zone, pulsed blow-off before 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-2026-000067227) never changes.

Identity and time

Publication numberOT-2026-000067227 · never reused
Internal UUID01a0ae8f-6bd5-7203-8a8a-743b152a5152 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067227
StatusPUBLIC

Content hashes

Canonical text6e7cbdfa8ad7464f3791389dff6314b23610277a563c584001067a54e22e70ff
Markdown661267f92f6db383063c1f0c267392e3a1002926436bd262ea47da45d67ecbc4
PDF
Publication page519cd8bd7eff9a45a4447f5d22034b6c254952df290d84bb179575559f8e54b3
Manifest28d623ba056d0f8f38827e61d6b83b54f97ace3ba6b06c8b27ae750b60845843

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
Signaturesw0R2EVcq74GmpBzDNZBLfAMwEBkhWpHloaVc93ZIRLDuJHJ4TTGGfhDm9NrGQBfGhlaXhcxhdHoqnK4eibLDA==
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

2026-09-17T10:30:53.742506ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067227
observed 519cd8bd7eff9a45a4447f5d22034b6c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:53.724342ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067227/manifest.json
observed 28d623ba056d0f8f38827e61d6b83b54...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:53.707752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067227/publication.md
observed 661267f92f6db383063c1f0c267392e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:53.690217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067227/publication.txt
observed 6e7cbdfa8ad7464f3791389dff6314b2...
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.