OpenTechnical

OT-2026-000077516

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, vented 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-2026-000077516) never changes.

Identity and time

Publication numberOT-2026-000077516 · never reused
Internal UUID01a0ae94-f50a-701c-beb4-2dc5a3adb6e0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077516
StatusPUBLIC

Content hashes

Canonical textddfa89af4933122f9ee5b739cfb679add1a1a39d72ab2ca8063d3eb1e6ef6e8a
Markdown1b3f30575bf1ebc94e666c71472f20714d23db3d9adc73f7d4e9b462de71a565
PDF
Publication pagee3408203985d1dac82a678bf5bc7a43f502fd954adb73318b4879d7a3e768584
Manifest54f61064a613163c74cf5823d2a4ef6b001220548f410c17a74c5b5291416527

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
SignatureFnydq9tLdVtFgjx6OvrjNacFQdLjxN98eqqbSi9AKgKzr5Th1JS0pgXjYqlOP/IIYQSAZFXI1ethePjHtpcTDw==
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

2026-09-17T10:09:12.518573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077516
observed e3408203985d1dac82a678bf5bc7a43f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:12.498293ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077516/manifest.json
observed 54f61064a613163c74cf5823d2a4ef6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:12.476680ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077516/publication.md
observed 1b3f30575bf1ebc94e666c71472f2071...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:12.457005ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077516/publication.txt
observed ddfa89af4933122f9ee5b739cfb679ad...
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.