OpenTechnical

OT-2026-000085781

Publication integrity record

Four cup vacuum gripper, four zone face, single stage ejector, 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-2026-000085781) never changes.

Identity and time

Publication numberOT-2026-000085781 · never reused
Internal UUID01a0ae99-e829-7810-861f-fa485490ec28 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:57.178584Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000085781
StatusPUBLIC

Content hashes

Canonical textd71b87c8fd832709949ba1d5ef286b96daf60fbbfc4f4080d55cc3a6eaba4572
Markdownfa079229642628fc162690b789f3062a2e51bb77d0a22acb2cabd61f1a11fac4
PDF
Publication page6e3e0eb01fea03597858987040d18c6359251f38dd6f5f2c2e838af0ee76d088
Manifesteb25af975c9c95e08ededb4e6dee80c621203b5af339c74a6974ca8c06ed241e

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
Signaturem9iLtPlMTVzAKTFr1CEIGZpxmfRZfWgTkxcm+HaATkXa4SfD5FhkIjK1b2jfA26A0fFPIZwo0RgQoRNQHwZGAw==
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

2026-09-17T09:52:40.539048ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085781
observed 6e3e0eb01fea03597858987040d18c63...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:40.520792ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085781/manifest.json
observed eb25af975c9c95e08ededb4e6dee80c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:40.501915ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085781/publication.md
observed fa079229642628fc162690b789f3062a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:40.484507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085781/publication.txt
observed d71b87c8fd832709949ba1d5ef286b96...
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.