OpenTechnical

OT-2026-000072496

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, vented before set-down

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-2026-000072496) never changes.

Identity and time

Publication numberOT-2026-000072496 · never reused
Internal UUID01a0ae92-89d8-7a87-a47b-c173a7d21107 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072496
StatusPUBLIC

Content hashes

Canonical textb1f0963419c55d2570235ab519632e13383d95eac752975354e9b9815ff46397
Markdown94b91de05c0bb9982e2698300ebe373badf58fe50c172f0fda3a995f7f4a956a
PDF
Publication page0fbd85e5ee8e42ff032840cd32c168004244893bc5eb6a8fbf29f4412093b508
Manifesta65f4ad430f0917511ebb8a062698cab0c9901efe597a58b83db71986052a0ea

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
SignatureHFYieWg5dp3iCnaELIpWnDEqBydKszh5cyaqx+c6Rscg+2tnOuHsGR7sUFIOHIFJyvPm1MBR720Dli2G0QFwDA==
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

2026-09-17T10:22:19.376474ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072496
observed 0fbd85e5ee8e42ff032840cd32c16800...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:19.360505ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072496/manifest.json
observed a65f4ad430f0917511ebb8a062698cab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:19.342948ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072496/publication.md
observed 94b91de05c0bb9982e2698300ebe373b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:19.326063ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072496/publication.txt
observed b1f0963419c55d2570235ab519632e13...
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.