OpenTechnical

OT-2026-000005804

Publication integrity record

Bellows cup vacuum gripper, pump fed, pressure verified at each zone, vented 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-2026-000005804) never changes.

Identity and time

Publication numberOT-2026-000005804 · never reused
Internal UUID01a0a945-6ba8-79da-98f8-db2b5a7fb30b · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:11:34.186678Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005804
StatusPUBLIC

Content hashes

Canonical text75baed80dff3367dd861730ac4fc5fb16b9faba5cdd921bdd595189d166c0a75
Markdown27b9d7ed7e84c88c5a8e226879b62a5b97da7759ec72bc86523eb1de26cfd082
PDF
Publication page62d363754adcdd261e9a829ce0d6833166250b9bb9f9438b2fccbf49e80f9db2
Manifestdf3770026c51485f24da254f911b4f2a09023bbe09321512b988cdd8bcb421f4

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
SignatureXs6qs7oXdu829zMESnpYZVjSHnbw/2CP0oSMCUt314a6dx0OOXDN/NnrUlT+Cx0uYRVruO/g6hCrhWyjAxMPBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:30.882231ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005804
observed 62d363754adcdd261e9a829ce0d68331...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:30.746976ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005804/manifest.json
observed df3770026c51485f24da254f911b4f2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:30.731993ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005804/publication.md
observed 27b9d7ed7e84c88c5a8e226879b62a5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:30.716105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005804/publication.txt
observed 75baed80dff3367dd861730ac4fc5fb1...
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.