OpenTechnical

OT-2026-000023778

Publication integrity record

Foam pad vacuum gripper, 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-2026-000023778) never changes.

Identity and time

Publication numberOT-2026-000023778 · never reused
Internal UUID01a0ae70-aed5-7543-ab64-318af5c4bad9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:55.528856Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023778
StatusPUBLIC

Content hashes

Canonical text491eefd1f9e8d4667b6428621949673dea4d5bb1b9009aadaf026635deef5180
Markdown06872c9eb49e95efe5da33867adfc91fc686bb9c3ed1f889a7393f0afe1a3b1b
PDF
Publication page90fe2f2197625cfcd497ce07dd035c48f832b5cad918441244f67d3c3b96b8dd
Manifest187bce63f3b3c3170d3d5f2c0a9e028cf1b183e54a54660ddb4ab8f9df096623

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
SignatureUDLAsYN75aM5Ps+6EpD7X0YiY2xu7L0IGQJOOqyfW2kKlywas7FhX0ee87FbpEGxEZJ8PSWuCBySue5yCineBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:50:14.942226ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023778
observed 90fe2f2197625cfcd497ce07dd035c48...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:14.922689ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023778/manifest.json
observed 187bce63f3b3c3170d3d5f2c0a9e028c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:14.902902ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023778/publication.md
observed 06872c9eb49e95efe5da33867adfc91f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:14.882400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023778/publication.txt
observed 491eefd1f9e8d4667b6428621949673d...
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.