OpenTechnical

OT-2026-000103669

Publication integrity record

Four bellows cup vacuum gripper, four zone face, pump fed, pulsed blow-off after 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-2026-000103669) never changes.

Identity and time

Publication numberOT-2026-000103669 · never reused
Internal UUID01a0aea4-e462-7e36-8c95-a8cc519095a9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:57.105586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103669
StatusPUBLIC

Content hashes

Canonical text2389c8f122678da97f4e1d8eab04f56722e5ef7d85fa3aaafe14e7fc5e0a0e95
Markdownc60168ca776694a70968ee3cee9b75495b7a907143ba8f688a21f496a3d41bc1
PDF
Publication pageac2929b3b11398b4b50326a976b18131ee11af256d06f4d068a4ce6e338e306f
Manifest993968fb19408f42d5266c174baa5e998970668fe92c5235d69c6a5479ee485a

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
SignaturecXfPq6zHvxsP4owydllqg//uHYRi40kRjm1CsjeyP0J/gFFkG0exxwZiWeG17UtdNdhSTxW7YOLhAcO7Ku4BCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:22:28.233458ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103669
observed ac2929b3b11398b4b50326a976b18131...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:28.216679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103669/manifest.json
observed 993968fb19408f42d5266c174baa5e99...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:28.199895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103669/publication.md
observed c60168ca776694a70968ee3cee9b7549...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:28.182552ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103669/publication.txt
observed 2389c8f122678da97f4e1d8eab04f567...
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.