OpenTechnical

OT-2026-000057467

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, supply line pressure sensor, 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-2026-000057467) never changes.

Identity and time

Publication numberOT-2026-000057467 · never reused
Internal UUID01a0ae87-d5c8-77e7-bdbf-f85b5a744f00 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:12.973410Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057467
StatusPUBLIC

Content hashes

Canonical textf7ccd4e7bc11abc605991d07b2ebcb151f7829baeebf452e3d5ea1f2d769eeef
Markdown475705c19b285313a8b45ea151fe0c847b0215ca16c940226367930b093a1ee2
PDF
Publication page5f5afa0dead31a821d426bc2fe0c9a51904b019a258f5dc32ef6c933986d24ad
Manifest529722bc2f81c0eecde618b193e68eeda837a4e3e5c4e868b511c980365f3d18

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
SignatureB+W5DazDl0KAgjKEzy57NPpyg7+tk81u1V8Q5atHPiu3V+J26lJAxfzzF4aEGBR68Sb/jPqc9/ynRVKgd9M5Bg==
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...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:49:46.122599ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057467
observed 5f5afa0dead31a821d426bc2fe0c9a51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:49:46.103500ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057467/manifest.json
observed 529722bc2f81c0eecde618b193e68eed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:49:46.086846ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057467/publication.md
observed 475705c19b285313a8b45ea151fe0c84...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:49:46.067577ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057467/publication.txt
observed f7ccd4e7bc11abc605991d07b2ebcb15...
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.