OpenTechnical

OT-2026-000042751

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000042751) never changes.

Identity and time

Publication numberOT-2026-000042751 · never reused
Internal UUID01a0ae7a-c0cf-7993-ab13-e2a29426e2cd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042751
StatusPUBLIC

Content hashes

Canonical text7c86db94968966e113476d9a340a8020345a7fb803db95e614a3ff3d8e0d7622
Markdown1a78763ffae4f411ac87e96933855bb2a1f883b43640a28202a81f9145bd57af
PDF
Publication paged90cbda78db09287bdaa802cf108f3713dcbaa86b990249cf30e32e6df5fa568
Manifest5095a7d7ac10f310be01efc3faf6976c4ac3ed71b1c7312ad5c3c2eb34d138c7

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
SignatureGzZ8gRQjEo9x1bYN7vxuzOoRSzZz3Wg6HmA09z0boZUQcpnAOV5XN/SlTcsB+iXsWNBe08zZ04ChdmGb6mirBQ==
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

2026-09-17T11:15:12.155312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042751
observed d90cbda78db09287bdaa802cf108f371...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:12.137678ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042751/manifest.json
observed 5095a7d7ac10f310be01efc3faf6976c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:12.116753ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042751/publication.md
observed 1a78763ffae4f411ac87e96933855bb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:12.096755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042751/publication.txt
observed 7c86db94968966e113476d9a340a8020...
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.