OpenTechnical

OT-2026-000031235

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, pulsed 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-2026-000031235) never changes.

Identity and time

Publication numberOT-2026-000031235 · never reused
Internal UUID01a0ae74-87ab-78bf-8723-21eeb0ba7259 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031235
StatusPUBLIC

Content hashes

Canonical text7557db336a867bda2b541d37f5b72f8db21e3386801511322b26dad4a8b41d60
Markdown4e8e401189c9d575773959cfc3e97a660d198005c3ff1fce9c8c51f7da0f5257
PDF
Publication page4464ec7393bb714dbec1db40d6b9388f3cc49eab61462a18b070959c5d8514cf
Manifest77be27f8c4a33c8330950946737cd9d27e6fd0aed2242b9d42baa4380ec2563d

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
Signatureg9e40J7p4mry1FeuvvPgwjS2tP+SNNnGoOR3I7HQ0PDLcno3cH6FT+Bm50s3L7kGq9h455HuZwRx1o5VHO8UBw==
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

2026-09-17T11:35:48.380170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031235
observed 4464ec7393bb714dbec1db40d6b9388f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:48.363487ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031235/manifest.json
observed 77be27f8c4a33c8330950946737cd9d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:48.345144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031235/publication.md
observed 4e8e401189c9d575773959cfc3e97a66...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:48.328366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031235/publication.txt
observed 7557db336a867bda2b541d37f5b72f8d...
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.