OpenTechnical

OT-2026-000102204

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, pump fed, pulsed blow-off after 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-2026-000102204) never changes.

Identity and time

Publication numberOT-2026-000102204 · never reused
Internal UUID01a0aea4-50f3-77da-8133-157b538d7b17 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:19.361569Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000102204
StatusPUBLIC

Content hashes

Canonical textaa272722ca345ecc27375502c8b713ed0dc67795cf27d6453ad1da30fb472d50
Markdownd6cac86dae72635ac0dc74649a8f7b50ce68411f9f37a5d94aabc7c5715c0109
PDF
Publication page39a6b23311b0428f22a0cf1c46ff472a37adb14abdabb256e1dacae7f02ebc62
Manifest641216814932bf5907359f2d1a003f71bfbd245b8bdc988b2ac85dd76497d67c

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
SignaturevPffbK2bPGTcPhjRjlChvztgJq3ZVF9HJ46RBVP0gUH1n5rAwt1wC1il9JBrmonih2zgK1MDNoifw3qT7Vw/Bw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:25:22.672854ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102204
observed 39a6b23311b0428f22a0cf1c46ff472a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:22.656160ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102204/manifest.json
observed 641216814932bf5907359f2d1a003f71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:22.639186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102204/publication.md
observed d6cac86dae72635ac0dc74649a8f7b50...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:22.621435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102204/publication.txt
observed aa272722ca345ecc27375502c8b713ed...
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.