OpenTechnical

OT-2026-000083495

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-2026-000083495) never changes.

Identity and time

Publication numberOT-2026-000083495 · never reused
Internal UUID01a0ae98-0415-7293-8a53-752264de8823 · 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-2026-000083495
StatusPUBLIC

Content hashes

Canonical text6c2e015d4840bab8303799f5b8d1362aaeeefe57ea5f8799a582483ae8d8e04e
Markdownb2e0f9cb8e8d375841c8e1219cdebbd9b726e76a2af39a34bdf148887a8c0f49
PDF
Publication pagee9154f7234c4ebc9ba9ffb2bf921450c5ab11d3dcd004e2989adc6df61aa7534
Manifestc70ff5ad4185eafcdbd3fd7e3368f15261c1d173cbc46077f7a3780d9e38dbdc

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
SignatureaeRNUNZboGkXZKunoX+NIjFJVQKWodNuvKZI2/LxvOmsEC90ccraqjibGF1NO6JF2efm2c+f7uKRdDfPRbS2CQ==
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

2026-09-17T09:56:28.191741ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083495
observed e9154f7234c4ebc9ba9ffb2bf921450c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:28.175503ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083495/manifest.json
observed c70ff5ad4185eafcdbd3fd7e3368f152...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:28.158001ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083495/publication.md
observed b2e0f9cb8e8d375841c8e1219cdebbd9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:28.140449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083495/publication.txt
observed 6c2e015d4840bab8303799f5b8d1362a...
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.