OpenTechnical

OT-2026-000013246

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, plant vacuum fed, 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-2026-000013246) never changes.

Identity and time

Publication numberOT-2026-000013246 · never reused
Internal UUID01a0ae6d-6fc9-7b2a-a198-ad7783bfd56c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013246
StatusPUBLIC

Content hashes

Canonical textb3e18bf28535b9fb732fff45c9ea1cee58d69cdc57221420ec391a6dfd33b88a
Markdown5e7770b452ee557cd1d8b85a3e2d44adda6414db61aa7e2a8da4b5e727130f94
PDF
Publication pagec4ed005e99e17ba2250b5ee9a37ad609227f9d3860ea31bbedf7714c22203009
Manifestd05584f94df209b4f9aa514fd905895db81443f96f1de6156a64fe6e6bc0d920

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
Signature5df8wLSp1ePOFF/K9sX+SHnXIILICcyKUN+2Or+X79TNh9lDdxNIi4Y6DYlN+g0ftzBdXefDQRGAHStvx2OJAg==
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

2026-09-17T12:09:38.904144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013246
observed c4ed005e99e17ba2250b5ee9a37ad609...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:38.884418ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013246/manifest.json
observed d05584f94df209b4f9aa514fd905895d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:38.863460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013246/publication.md
observed 5e7770b452ee557cd1d8b85a3e2d44ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:38.843481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013246/publication.txt
observed b3e18bf28535b9fb732fff45c9ea1cee...
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.