OpenTechnical

OT-2026-000067483

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, pulsed blow-off before set-down, on a tool changer

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-2026-000067483) never changes.

Identity and time

Publication numberOT-2026-000067483 · never reused
Internal UUID01a0ae8f-6bd9-7226-94cf-7cb533b4ca22 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067483
StatusPUBLIC

Content hashes

Canonical text2a892c43a37e7e6c79f69e68d5a63d757520f9c988c6f208ead96563724ab18c
Markdown3aa3640c2524e42dfec6985198e84a21e2b0412c29d12b88f0c28b432bb0809b
PDF
Publication paged3abe3bf32fffd6294f29b07969924963496c6decfe6fde78770c8ea028fea93
Manifest0c87283869c4e908220d3f73571cfefcd546e592b7aadfa5bf16f94f3be9f1fd

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
Signature515s7zg5MFgwa2q9xoEL93YOAS/ghUFF0RanO9XQk+5S5eNLg6Cawhg7TNE83W+3TfeftWMSp4RMZXR2UIjdBQ==
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

2026-09-17T10:31:46.300702ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067483
observed d3abe3bf32fffd6294f29b0796992496...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:46.278718ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067483/manifest.json
observed 0c87283869c4e908220d3f73571cfefc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:46.257595ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067483/publication.md
observed 3aa3640c2524e42dfec6985198e84a21...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:46.238036ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067483/publication.txt
observed 2a892c43a37e7e6c79f69e68d5a63d75...
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.