OpenTechnical

OT-2026-000083653

Publication integrity record

Foam pad vacuum gripper, four zone face, pump fed, 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-2026-000083653) never changes.

Identity and time

Publication numberOT-2026-000083653 · never reused
Internal UUID01a0ae98-0416-740a-8f86-5748c84673de · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:53.320528Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083653
StatusPUBLIC

Content hashes

Canonical text70b77f907785d4eff9c43e91e4134ee45328f096c524956711682fcc706e12a3
Markdown085eb5a670514b9e4d3640bb204ede334e73d79c5ec3170a5f61d963c5d24809
PDF
Publication page1f405a6bfcb81eaae3840931456a8b7d403c438bd91bed2467502f1942043ea4
Manifestc904b93188956e741057cead9d2229b1f307ff714f5f57e4a91fc0f07ef5ec25

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
SignaturexH1kX+or9FrmMWs/gXAt5RqWJgTrXLeFvl4qxySHlZzzjiCxPLlTIBDKBbY5hqDkAOSN/mOOzEm2bwB7WGfpDA==
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

2026-09-17T09:57:16.207653ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083653
observed 1f405a6bfcb81eaae3840931456a8b7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:16.190387ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083653/manifest.json
observed c904b93188956e741057cead9d2229b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:16.172989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083653/publication.md
observed 085eb5a670514b9e4d3640bb204ede33...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:16.156035ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083653/publication.txt
observed 70b77f907785d4eff9c43e91e4134ee4...
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.