OpenTechnical

OT-2026-000043925

Publication integrity record

Single cup vacuum gripper, pump fed, supply line pressure sensor, sustained 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-2026-000043925) never changes.

Identity and time

Publication numberOT-2026-000043925 · never reused
Internal UUID01a0ae7b-d678-7bec-ad1d-b6fc195faa61 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:06.584190Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043925
StatusPUBLIC

Content hashes

Canonical text7532014a5322f5371af3ffe2cbea0ba2b59b58343d951b9c2621c524301414c5
Markdownc136c74386dec7abe4cdcec06627fe6076a714a7210128102936ddcb7eab74bb
PDF
Publication page14df89067aa8b61dd86ac9d4ceb975c1040b2cd5d08283411232c841021fd7ef
Manifeste2ed919e9bbbcd964230c74bca5ce6da2c79289930a5648e57f7557cbc072538

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
Signature09teyPR80EzYw9wv+OQ5cS+MmWHkE69aXaTufcjY0aSAGIpOVW5nVIwv6Rkx/rCGvu7ziEHdficRJkUlstTkDA==
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

2026-09-17T11:12:16.307690ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043925
observed 14df89067aa8b61dd86ac9d4ceb975c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:16.288661ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043925/manifest.json
observed e2ed919e9bbbcd964230c74bca5ce6da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:16.268796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043925/publication.md
observed c136c74386dec7abe4cdcec06627fe60...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:16.250664ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043925/publication.txt
observed 7532014a5322f5371af3ffe2cbea0ba2...
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.