OpenTechnical

OT-2026-000013408

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, pump 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-2026-000013408) never changes.

Identity and time

Publication numberOT-2026-000013408 · never reused
Internal UUID01a0ae6d-6fca-7bfb-a9df-2deabff1d06a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013408
StatusPUBLIC

Content hashes

Canonical text67286dd3269ff10cc07a91ed16dad86b819afd7c865d1b5db6849cb15bf5a8d6
Markdown092d8ddf40c128b262c03fab44ace30df24d41edee91f070c6b22d502e20890f
PDF
Publication page52c6ca1fae83b6e8a04d9e4ee7ee41073b73c704763d1373152994269a14b667
Manifest04ff0af5bc27b548b9c2863745dafe774345982e80cff4af8ad938b9528c76d0

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
Signature5XlY3upang7zNhC6GLmX/Yc/FKc3iN/nomAmfEbdrjwT3OQOMIwGJaLkfY/oWyfppzRNe57qjhggCmM86g9PCQ==
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

2026-09-17T12:09:53.136296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013408
observed 52c6ca1fae83b6e8a04d9e4ee7ee4107...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:53.115667ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013408/manifest.json
observed 04ff0af5bc27b548b9c2863745dafe77...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:53.096550ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013408/publication.md
observed 092d8ddf40c128b262c03fab44ace30d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:53.077211ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013408/publication.txt
observed 67286dd3269ff10cc07a91ed16dad86b...
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.