OpenTechnical

OT-2026-000087509

Publication integrity record

Two cup vacuum gripper, two zone face, pump 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-2026-000087509) never changes.

Identity and time

Publication numberOT-2026-000087509 · never reused
Internal UUID01a0ae9a-cd51-789c-93cd-85104c0154ad · 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-2026-000087509
StatusPUBLIC

Content hashes

Canonical text0ca07112b7d931405f4bea8380430802d2b3f2235f6904e11e46e6da1b170612
Markdownfea36861a4651ed85ec76ef6c80a5328f025567eb6ef39d8190c9817a4f4e9fe
PDF
Publication pagedeaedd849d5cb3a0461d49f16d7359bbcce908f7fd6974d07c921332164eff4c
Manifest21e4f4bf8be19a2d5329924e57b536e9b50a21f0423736859ee909e7c2b16f47

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
Signature9SP8NcyAIlVCc94lsyVXkuk89oRfZ2EuojZ+FU7wOZcrRZ028Axmuh2CUaL7YD8XQ4E2SnnqhcP/8OFzhvrtDA==
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

2026-09-17T09:50:50.604959ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087509
observed deaedd849d5cb3a0461d49f16d7359bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.588609ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087509/manifest.json
observed 21e4f4bf8be19a2d5329924e57b536e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.571996ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087509/publication.md
observed fea36861a4651ed85ec76ef6c80a5328...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.554955ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087509/publication.txt
observed 0ca07112b7d931405f4bea8380430802...
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.