OpenTechnical

OT-2026-000090955

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, pump fed, pressure sensor per zone, sustained 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-2026-000090955) never changes.

Identity and time

Publication numberOT-2026-000090955 · never reused
Internal UUID01a0ae9c-c011-7c04-b738-f65ca68f0ac7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090955
StatusPUBLIC

Content hashes

Canonical text17d20360f573da2e5e22dc4c5f6c7036aef8a552b71ed788f7605c22f1c68411
Markdownbdcf63abf67471f329406f46e9bd9bafd8fc45d6b69aa92ff5be88fbef30a051
PDF
Publication pagebbcc9c4bbbb338777f292e60a6987d1c17a36ef33108d980bdfe51b477b8c2bd
Manifest86b7e03c8555d09b27715a50f5fa39a2451b77ce8e9cccd9a81239495bd303e5

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
SignaturenIHtzkhy0NPKhksJxL0DUtMdoM94s/nZ7k32Rnn8kvxzncnQngqkYhr46BajwBEbKd1fjzyIZ0Fmv/3rd9bmAA==
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

2026-09-17T09:44:10.618005ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090955
observed bbcc9c4bbbb338777f292e60a6987d1c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:10.598785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090955/manifest.json
observed 86b7e03c8555d09b27715a50f5fa39a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:10.581723ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090955/publication.md
observed bdcf63abf67471f329406f46e9bd9baf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:10.564526ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090955/publication.txt
observed 17d20360f573da2e5e22dc4c5f6c7036...
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.