OpenTechnical

OT-2026-000074715

Publication integrity record

Three cup vacuum gripper, three zone face, four outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000074715) never changes.

Identity and time

Publication numberOT-2026-000074715 · never reused
Internal UUID01a0ae93-ac2b-7471-ac2d-9df43da3d651 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074715
StatusPUBLIC

Content hashes

Canonical texta9c57f2c4ce8ff396d3f40aa12100f85aaa3684ae2a8ce740176108c1ad9dea0
Markdownd16ef779cc216400be8f5bc7e05792ec48def2df4ffc15fa759790a5c7e26d33
PDF
Publication pageccb845fe2319dce04e7e2a7d15b18e5cf6d09725225f9897fe5eb814f7fec824
Manifestf06d3b18c8baead46167fdc4aa9cda6b2a332d6b8da059528f9fad59684f1447

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
SignatureOCHfXStVDdR6u+xOpP2ZDZTWHYbvWIYt+jWH33DqlJ0sUsUKmAu9lSyWhiYFxMoGDoiuLgNAuTfXWnTfMPWWDQ==
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

2026-09-17T10:18:18.659712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074715
observed ccb845fe2319dce04e7e2a7d15b18e5c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:18.642584ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074715/manifest.json
observed f06d3b18c8baead46167fdc4aa9cda6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:18.623338ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074715/publication.md
observed d16ef779cc216400be8f5bc7e05792ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:18.605278ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074715/publication.txt
observed a9c57f2c4ce8ff396d3f40aa12100f85...
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.