OpenTechnical

OT-2026-000015678

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, plant vacuum fed, supply line pressure sensor, 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-2026-000015678) never changes.

Identity and time

Publication numberOT-2026-000015678 · never reused
Internal UUID01a0ae6e-0c4b-73eb-bc5b-ab77afa57491 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:02.846253Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015678
StatusPUBLIC

Content hashes

Canonical text8137f799d5d0ed66dd435cd1ffd5c80aeefe85620c4f26163e8aefd803693fba
Markdown03667cbab8bb7b5b0395cf04c48fd10fb4112056624673443ec600b71bf2966c
PDF
Publication page15662294d6b6ea73f6a5b9803882b9bd1819f1f6c6b0bccb7e1f502f03f188d6
Manifest3ff8275d4a66615a3c17d64510a14c1e55de3758b89a90477398aeb9568e4fa4

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
Signatureq/MMltI2jc1npsHpenzJLWUQFjciwQO1Sxdb21YlLwzdiE0rvyf7+ZrqeJ1PH/7yHtvyXsoYx1Nm99k+fY7hBA==
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

2026-09-17T12:04:56.866304ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015678
observed 15662294d6b6ea73f6a5b9803882b9bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:56.848350ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015678/manifest.json
observed 3ff8275d4a66615a3c17d64510a14c1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:56.831860ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015678/publication.md
observed 03667cbab8bb7b5b0395cf04c48fd10f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:56.814084ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015678/publication.txt
observed 8137f799d5d0ed66dd435cd1ffd5c80a...
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.