OpenTechnical

OT-2026-000027381

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, supply line pressure sensor, 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-2026-000027381) never changes.

Identity and time

Publication numberOT-2026-000027381 · never reused
Internal UUID01a0ae72-6997-72a1-a100-cb6aca2cc622 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027381
StatusPUBLIC

Content hashes

Canonical text69de090db1e1ebb561858fa2d3aa9606246ad05a797dbbf19c02ad89910fac9a
Markdown80fd86bda4cb5a8d992166679c9f24fca127a777b3ac2a2ddf37fc275619fe7a
PDF
Publication page222b0b49f558d61e0394b7344e5962dbc0e65d56223052409bbe7249e1721230
Manifest2265447ccfde83dbb52abb9e905a1b6d2c5f4800cc7a51c16af039a86fbe7b0f

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
Signaturebdtf8osZQVYeBZVRsq+Ht04t7mV88txpMd8Wr1kD5IaxdykacBGT48gBA9L31g5wbvgOtsy2NBOH1xU/BGz6DA==
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

2026-09-17T11:42:47.969884ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027381
observed 222b0b49f558d61e0394b7344e5962db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:47.951844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027381/manifest.json
observed 2265447ccfde83dbb52abb9e905a1b6d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:47.934868ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027381/publication.md
observed 80fd86bda4cb5a8d992166679c9f24fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:47.915755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027381/publication.txt
observed 69de090db1e1ebb561858fa2d3aa9606...
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.