OpenTechnical

OT-2026-000028955

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, 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-2026-000028955) never changes.

Identity and time

Publication numberOT-2026-000028955 · never reused
Internal UUID01a0ae73-2a9e-7476-a9e7-a7950a332762 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028955
StatusPUBLIC

Content hashes

Canonical textddddcdbac3d9522ef0faebb90b4f36a567e2371ad9b276bf134d3cdcb8fe5242
Markdownd7541a52ab29ca18a5a69238690829c2dbf6e39401f81ad5ee0d7ba86a83e287
PDF
Publication page9704a265aaf6f023aa4f1999906a9aecae1eccb0a17b9182d0df3f6f108ff9f0
Manifestdfbe426ec1bb505a7eac0418653703e2e47ce8adf4b11da4bc91abde076f84a7

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
SignatureILxF+GztgnJ88s04nVwxoSNsfb5f0ewobiPzsDOGhOTQY0mnq59ZcuyCM7clXXcmThpYg9Ox0wSj8SEw+4BuBA==
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

2026-09-17T08:20:26.467354ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028955
observed 9704a265aaf6f023aa4f1999906a9aec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:26.447139ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028955/manifest.json
observed dfbe426ec1bb505a7eac0418653703e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:26.274839ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028955/publication.md
observed d7541a52ab29ca18a5a69238690829c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:26.232311ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028955/publication.txt
observed ddddcdbac3d9522ef0faebb90b4f36a5...
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.