OpenTechnical

OT-2026-000049864

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, pulsed blow-off after 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-2026-000049864) never changes.

Identity and time

Publication numberOT-2026-000049864 · never reused
Internal UUID01a0ae81-fd75-78da-9576-61e6629c2d49 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:49.774136Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049864
StatusPUBLIC

Content hashes

Canonical text6e22287e0dbcd543e6a4076ee66cc5215043d4a9c9cfa4ca55a9186d7c4276f3
Markdown56a46f4ccfed10ed3a58115ced20fc34fd6ce05e8a915f16a9d0f8fc6dafdd50
PDF
Publication pagee1ff645fd3f12c5db78590acef589247c1e5b0cba85e141f0c44139d88b69c7f
Manifest5f1324574d6d2eebc22ac15b58182349da1d6e2d4e43fae73f110d6df09f7617

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
SignatureiHJyZ+s4Xnwee4VOyiQZ8L3PSralEsx0nzEbbGTWlW9UPR26JUAHww8Ft4UA/q2noeleJqMIy0oLLzunjUgWBA==
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

2026-09-17T11:01:46.239351ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049864
observed e1ff645fd3f12c5db78590acef589247...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:46.221308ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049864/manifest.json
observed 5f1324574d6d2eebc22ac15b58182349...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:46.201864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049864/publication.md
observed 56a46f4ccfed10ed3a58115ced20fc34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:46.181982ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049864/publication.txt
observed 6e22287e0dbcd543e6a4076ee66cc521...
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.