OpenTechnical

OT-2026-000104223

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, single stage ejector, 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-2026-000104223) never changes.

Identity and time

Publication numberOT-2026-000104223 · never reused
Internal UUID01a0aea5-3420-7656-9b22-fb94e2e80a53 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:17.519068Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000104223
StatusPUBLIC

Content hashes

Canonical textc99014462c16979850cce8966c95990b841e41bf7fdaa05b31604f3d59888763
Markdowne2e0638839070992e4fd2c77e990d5fe57f46002bb1ac70023529f94bec7032e
PDF
Publication pagef87b4d0d739bed96d5d0f7b65a1572a2d68187ab639e522d716b42d34ad66bed
Manifest476467bee860dc014aac01280f0854681e08f32cd95e7e9ea1a4fb93e7284919

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
SignaturenTeGISYRKJPQ0zLGspPSMeQZ+QSQKWgZNXRcPIY4ykz5o07ZCB59/dUmHZghK6n9wG8+RtkcN8/7G9ahTq7SBA==
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

2026-09-17T09:20:19.646335ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104223
observed f87b4d0d739bed96d5d0f7b65a1572a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:19.629355ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104223/manifest.json
observed 476467bee860dc014aac01280f085468...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:19.611666ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104223/publication.md
observed e2e0638839070992e4fd2c77e990d5fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:19.593163ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104223/publication.txt
observed c99014462c16979850cce8966c95990b...
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.