OpenTechnical

OT-2026-000012575

Publication integrity record

Foam pad vacuum gripper, four zone face, two stage ejector, 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-2026-000012575) never changes.

Identity and time

Publication numberOT-2026-000012575 · never reused
Internal UUID01a0ae6d-39f7-77f5-9c7d-f54fa815ba29 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012575
StatusPUBLIC

Content hashes

Canonical text1b8d1bb75a5314ab683d27c5b9399985432af705b31f2717a79518226c217a3b
Markdownfa0db3e98569a28939c9ceac5b5bdd91ba78213dde28a33afeeb3ad014547002
PDF
Publication page7249df08d4b0e9a1710204a7aaff7de73d8cef5176bdd110113c1e084d15607d
Manifestf0e56c594422d18c36945389b213087f9a379c6416f6ff7da7df2109ee98163d

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
Signature95XyacnCk6inYshdbr7Q/WqwxBTFKGbh3fm9XffadU+FhjsJtvWw5MqKtKO0WTwm0uHTMfgCMwX7h422rl02CA==
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

2026-09-17T12:12:07.641148ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012575
observed 7249df08d4b0e9a1710204a7aaff7de7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:07.620445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012575/manifest.json
observed f0e56c594422d18c36945389b213087f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:07.599591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012575/publication.md
observed fa0db3e98569a28939c9ceac5b5bdd91...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:07.579284ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012575/publication.txt
observed 1b8d1bb75a5314ab683d27c5b9399985...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent