OpenTechnical

OT-2026-000027432

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, 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-2026-000027432) never changes.

Identity and time

Publication numberOT-2026-000027432 · never reused
Internal UUID01a0ae72-6998-71f7-8300-ebe95bf1965d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027432
StatusPUBLIC

Content hashes

Canonical text67c5c62f9f8cb4a1e9058fbe9a3862c2606535dd2e429292e45a6ee26c7b771f
Markdown4070003a1798c093dc03da2cd9226e47118ad771e3c524a566cba8888c16f081
PDF
Publication page2025423bc053570a51d28a29fd8cf3d245eb007d5f7dcefcf59e80457511dea9
Manifest3f7e710ea8c6db44a40cbdce457992e128b946a7ce4baa050391e6e6289c487f

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
Signature1NrsPB58859dXS92sX4K/8lLUl92fifsPcJknE6NKK8cyMdJTd1+A08MdaiwKKQG9QKR2WM8JMgAvdXlmQU0Aw==
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

2026-09-17T11:42:52.854131ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027432
observed 2025423bc053570a51d28a29fd8cf3d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:52.800219ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027432/manifest.json
observed 3f7e710ea8c6db44a40cbdce457992e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:52.737701ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027432/publication.md
observed 4070003a1798c093dc03da2cd9226e47...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:51.786068ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027432/publication.txt
observed 67c5c62f9f8cb4a1e9058fbe9a3862c2...
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.