OpenTechnical

OT-2026-000009137

Publication integrity record

Foam pad vacuum gripper, two zone face, pump fed, vented 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-2026-000009137) never changes.

Identity and time

Publication numberOT-2026-000009137 · never reused
Internal UUID01a0ae6b-31b9-7924-b8e4-a6924f2dbb19 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:55.823363Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000009137
StatusPUBLIC

Content hashes

Canonical text3e1c443e95718cbe846b4d7e6d422621f6857538bfc9b26e8696c6f1c93836bc
Markdown4038ba29756320e47f0828f5c3869ffef099fc58c435533739499e1a9c419414
PDF
Publication page8d35e0245d2dafab1cd8218ab8758d420c7f4e7cb0c89f0cacca4bd22aa03c69
Manifeste83503e9b520f2a14f7f96e11a0398b19e6dff2c8f8d20c0db57a29102f4e531

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
SignaturensBrCZEgwav2o3PDenrksyVRfmREQ7JXF66l1yXWUwBo5LhCBKT5S3DF+wL4BKz22UJRytnO5CRuR+sRwHiXBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T20:43:37.699344ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009137
observed 8d35e0245d2dafab1cd8218ab8758d42...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T20:43:37.444290ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009137/manifest.json
observed e83503e9b520f2a14f7f96e11a0398b1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T20:43:37.182475ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009137/publication.md
observed 4038ba29756320e47f0828f5c3869ffe...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T20:43:36.983052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009137/publication.txt
observed 3e1c443e95718cbe846b4d7e6d422621...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:17:49.960039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009137
observed 8d35e0245d2dafab1cd8218ab8758d42...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:49.939677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009137/manifest.json
observed e83503e9b520f2a14f7f96e11a0398b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:49.920795ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009137/publication.md
observed 4038ba29756320e47f0828f5c3869ffe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:49.898722ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009137/publication.txt
observed 3e1c443e95718cbe846b4d7e6d422621...
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.