OpenTechnical

OT-2026-000087841

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, supply line pressure sensor, 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-2026-000087841) never changes.

Identity and time

Publication numberOT-2026-000087841 · never reused
Internal UUID01a0ae9b-1aa5-7b73-a9c8-f853f6c6e185 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087841
StatusPUBLIC

Content hashes

Canonical text3a9fe84da74f94052f3c872a418707681c8d0dd6364f8f2a858bf1a40dab6a1f
Markdown04a185ac2e57a5d0412e59d15f16e749a30d389b454ed90057dd0e1f2dde80ff
PDF
Publication page9dffae6034726d6e7fefd1ecf0c9fa34d261c8b0a2b8b0d2cfed06e487042396
Manifest2618c19fbd6f07aa658c09f7058b31d0974ba5d15cd441df4833636168ea8ad9

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
SignatureNfTfGUIgly5PoL8GvK0/Ee1PgAp0VXQQii+q+7M4xjC3CERdQ18PK7g/9r0ZJrgk9Nc0owcnFyEgIiv3iGVeBg==
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

2026-09-17T09:49:03.783856ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087841
observed 9dffae6034726d6e7fefd1ecf0c9fa34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:03.766346ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087841/manifest.json
observed 2618c19fbd6f07aa658c09f7058b31d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:03.746987ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087841/publication.md
observed 04a185ac2e57a5d0412e59d15f16e749...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:03.728778ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087841/publication.txt
observed 3a9fe84da74f94052f3c872a41870768...
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.