OpenTechnical

OT-2026-000059621

Publication integrity record

Single cup vacuum gripper, common isolation valve, pump fed, vented 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-2026-000059621) never changes.

Identity and time

Publication numberOT-2026-000059621 · never reused
Internal UUID01a0ae89-ec24-7317-8d21-d706f87676b6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:44:29.732559Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000059621
StatusPUBLIC

Content hashes

Canonical text140021eacdaffc2f1965f2bf6dfb943e6fde454cc964ef7a89d29f49d5257905
Markdown92764fa7e9bff46a6ae2c3de8c72a3a9b9cc8a664866ec0a25ee3f3ebc646ced
PDF
Publication pageb269a28e4b6b0bedbd8b571ca4c9738d8e900e7a438fbea3a177f42cda276344
Manifestbad5cfd65a4c4c79b6ea6c4c982f8484f3f9ecefd69faf89ece8ceed53494f48

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
SignatureaodWdOJNsu6mh+CHO+HV8QFFxJl8+BqksoaPrpEee4CD8azqPoMiNYa3HwN4jc2O0cPMiGYXP0e9qkZz7LFuBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:44:16.858726ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059621
observed b269a28e4b6b0bedbd8b571ca4c9738d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:16.841137ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059621/manifest.json
observed bad5cfd65a4c4c79b6ea6c4c982f8484...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:16.821442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059621/publication.md
observed 92764fa7e9bff46a6ae2c3de8c72a3a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:16.802275ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059621/publication.txt
observed 140021eacdaffc2f1965f2bf6dfb943e...
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.