OpenTechnical

OT-2026-000090744

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, pump fed, pressure sensor per zone, sustained 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-2026-000090744) never changes.

Identity and time

Publication numberOT-2026-000090744 · never reused
Internal UUID01a0ae9c-7f31-7a7a-9caa-cf4fdd593d53 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090744
StatusPUBLIC

Content hashes

Canonical text18c6df3010994452021a42d705eac4156ebdf560736888220626509a00e9bf7c
Markdown47cdb44bfbc1a6359a4b8412783c8e1d8b6b5158fa600249f85cd03ff5475408
PDF
Publication pageb1879717b1fc8e3ce0b46f9b78142bd06395445e99a26d14f714625340ce0e40
Manifestfe298dd425a21c7d5b711d58d105ef485e277f56618edf2025abe5567a201c6d

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
SignatureSbg1sDlgYqJY9D98daHZygdkA3UBA1SfdgTTAuphnMfTaF1X9Yf7fl3WGxelEICTexMicXEcVrZBnN2ucm+YAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:44:56.123658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090744
observed b1879717b1fc8e3ce0b46f9b78142bd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:56.106149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090744/manifest.json
observed fe298dd425a21c7d5b711d58d105ef48...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:56.088864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090744/publication.md
observed 47cdb44bfbc1a6359a4b8412783c8e1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:56.065838ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090744/publication.txt
observed 18c6df3010994452021a42d705eac415...
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.