OpenTechnical

OT-2026-000012131

Publication integrity record

Three cup vacuum gripper, three zone face, single stage ejector, 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-2026-000012131) never changes.

Identity and time

Publication numberOT-2026-000012131 · never reused
Internal UUID01a0ae6d-39f4-7db6-935b-ad85e9afd3fb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012131
StatusPUBLIC

Content hashes

Canonical text92851cfcc9e2dcf2d79a6bc0909756abea3b313cffde5c09dcddac97026c1d40
Markdownb8f937e1f41ba3178c68635b779deb810250832cf65f285be302fb03cb7005ee
PDF
Publication pageb283e5c7df1bc4ad08a137f3ff5e7044bb29c5f331899dc82f9445c295b913c0
Manifest736f7f3ea725ac24d503dd3d0fcaa2d221f31d9c43bdad7bfe64e10441f9e2f8

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
Signature5xRHwu6SujDLzANFzxB/h7aQkG3aZgvq0SklCi57GYsYmHvDCa1KWh2FCYVjCxj3W3eVKx1K97i8VJYXLJCaCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:11:01.059053ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012131
observed b283e5c7df1bc4ad08a137f3ff5e7044...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:01.039766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012131/manifest.json
observed 736f7f3ea725ac24d503dd3d0fcaa2d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:01.021562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012131/publication.md
observed b8f937e1f41ba3178c68635b779deb81...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:01.000152ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012131/publication.txt
observed 92851cfcc9e2dcf2d79a6bc0909756ab...
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.