OpenTechnical

OT-2026-000090623

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, plant vacuum fed, pressure sensor per zone, sustained blow-off before set-down

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-2026-000090623) never changes.

Identity and time

Publication numberOT-2026-000090623 · never reused
Internal UUID01a0ae9c-7f30-7823-a7f9-6e1e11e3cf69 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090623
StatusPUBLIC

Content hashes

Canonical text94d12835afc49365599eb1748939d950bcce558f210507527c81af62864c36b0
Markdownc2183fa094b2ad0f3bdfdf51491ee219fd04393a4d4c829a5151dc3786e9090f
PDF
Publication page57b3f2d48b699a105641f15bdfd1f16c31a4c8baccfa1d7d22c8b240ff48cc64
Manifest001d16fbad35525e0407db2fcd66b9a2cf4c147483b07f967ccf1cd98b1b4fe1

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
SignatureX9GQvcHUYu20CuZStUDsW/H8PKPZROy1HBhT0pWl8xPZjbwUep7+WY2kilteV50BooLzeKn8DZMAhyFbXMVvDw==
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

2026-09-17T09:44:20.580998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090623
observed 57b3f2d48b699a105641f15bdfd1f16c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:20.563997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090623/manifest.json
observed 001d16fbad35525e0407db2fcd66b9a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:20.547513ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090623/publication.md
observed c2183fa094b2ad0f3bdfdf51491ee219...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:20.529759ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090623/publication.txt
observed 94d12835afc49365599eb1748939d950...
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.