OpenTechnical

OT-2026-000089591

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump fed, manifold pressure sensor, sustained blow-off before set-down

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-2026-000089591) never changes.

Identity and time

Publication numberOT-2026-000089591 · never reused
Internal UUID01a0ae9c-1a21-725e-a9d4-94e4bce540b6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:21.039513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089591
StatusPUBLIC

Content hashes

Canonical textb591b9978fb89fd405df4b7aa19d48e0b258a7612ebaf6d3f0d64bd983470620
Markdown79f4ced94e1759ad4e1816e5460182e5e5eafe88ed66cc72a7e07f7b123ee42c
PDF
Publication page5f84798d764384f9e0e3f034fe099abcef01ccba25a0fd5394583049521d7978
Manifest1eced4c3efdb837dd7ab0fffe351d7be05a2b2d78875ba01f02a70adbca4f2bc

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
SignatureElhzH4KE3BvcovVvH5otG+CdhD6dsn92eGElMZrSJ2EB3oufWCIUNgv5EDiR70Lm3LPKR1C0pHidC3VszJ9aCQ==
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

2026-09-17T09:46:34.078305ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089591
observed 5f84798d764384f9e0e3f034fe099abc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:34.060069ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089591/manifest.json
observed 1eced4c3efdb837dd7ab0fffe351d7be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:34.041922ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089591/publication.md
observed 79f4ced94e1759ad4e1816e5460182e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:34.024376ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089591/publication.txt
observed b591b9978fb89fd405df4b7aa19d48e0...
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.