OpenTechnical

OT-2026-000086421

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, plant vacuum 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-2026-000086421) never changes.

Identity and time

Publication numberOT-2026-000086421 · never reused
Internal UUID01a0ae9a-2c97-7185-bef9-b8cebd83d61c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:14.823225Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086421
StatusPUBLIC

Content hashes

Canonical text3b5ccceb129384c4761dc5d5a95ff7ff83961a6f833b4a20fadf1c9e90cf3ff3
Markdown4df90cc666735e6836ff660660c5d8b5c25b1c1f118993392ba76b545291783c
PDF
Publication page0a059f424467ff9d58ea611bf27c3e8f66c9b2515e12c6a5f35f4095b74f8a94
Manifest21674a906d7ec4fe6a8b2b382cb4a84eed0f1daf2d43c2e92b1b48a2370423fd

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
SignaturefUq0H2xPH3BJk62a5JoRbR+3zwo2s6OrsNud238PbGKkg7D2+2s40vOeoDnCxCaWCb7M13mnoQsTrnIjr4hHDg==
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

2026-09-17T09:51:54.858814ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086421
observed 0a059f424467ff9d58ea611bf27c3e8f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:54.839036ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086421/manifest.json
observed 21674a906d7ec4fe6a8b2b382cb4a84e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:54.793085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086421/publication.md
observed 4df90cc666735e6836ff660660c5d8b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:54.671476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086421/publication.txt
observed 3b5ccceb129384c4761dc5d5a95ff7ff...
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.