OpenTechnical

OT-2026-000067059

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, pump fed, 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-2026-000067059) never changes.

Identity and time

Publication numberOT-2026-000067059 · never reused
Internal UUID01a0ae8f-14fe-71e6-8769-2b972076719b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:07.760615Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067059
StatusPUBLIC

Content hashes

Canonical textb41c185ec9aec58bfee60920d39b3bb6e07457b588c008c399e48e4caf5537d2
Markdown45ad03f23225673d5ee99e9c3e6544b06c5d55ed0d02a9fbfc5d8c250c95c9bf
PDF
Publication pageb91003eb36d96729f2e3407611c0e261cd9035ab75be7575a75ac822b6e6d1b5
Manifestb860b4b2c5f4718cfcfe6bfb7e16ae2aadc2a07f09346f20dc47e5c4b4984f78

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
SignatureZ/PfJDhDGrhFZXdovTqIJLwhU2p/wpu4OivCS/ND5vutznRp3EAZ0i2o74yjqkeCBpxTgwVED7k9VF/rxddfDQ==
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

2026-09-17T10:32:18.722378ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067059
observed b91003eb36d96729f2e3407611c0e261...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:18.706416ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067059/manifest.json
observed b860b4b2c5f4718cfcfe6bfb7e16ae2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:18.690816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067059/publication.md
observed 45ad03f23225673d5ee99e9c3e6544b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:18.672613ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067059/publication.txt
observed b41c185ec9aec58bfee60920d39b3bb6...
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.