OpenTechnical

OT-2026-000087633

Publication integrity record

Four cup vacuum gripper, four zone face, plant vacuum fed, supply line pressure sensor, sustained 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-2026-000087633) never changes.

Identity and time

Publication numberOT-2026-000087633 · never reused
Internal UUID01a0ae9a-cd53-7a5a-bfb4-0c2e7c275820 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087633
StatusPUBLIC

Content hashes

Canonical textf2da9f42ec9dac266fde51d1cd4093ea12664569409f542bd8dfb4fcd2fc6ab4
Markdown0d250931fc0e661c6c9f1ef07a51037a6bb0bf36ae9819c74089437aac8826c6
PDF
Publication paged016ede9f507aa864dcccc3a2cacfeed64a54f3c22ec94983f833da017c0acb2
Manifestf87bbef123e475eb56086e30b024404e050da89ec78744279aa2b5c043df2ec2

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
Signatureiobb2jaXLoAypcBRp1+xT5HYIbiACbQTO2g/6dfWOFrgKvUIpZiBIgU09FMvrJQHc55VovedVQqTkBVaHZe2BA==
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

2026-09-17T09:51:04.682384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087633
observed d016ede9f507aa864dcccc3a2cacfeed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:04.666553ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087633/manifest.json
observed f87bbef123e475eb56086e30b024404e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:04.651095ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087633/publication.md
observed 0d250931fc0e661c6c9f1ef07a51037a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:04.635289ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087633/publication.txt
observed f2da9f42ec9dac266fde51d1cd4093ea...
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.