OpenTechnical

OT-2026-000056099

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, plant vacuum fed, supply line pressure sensor, pulsed 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-2026-000056099) never changes.

Identity and time

Publication numberOT-2026-000056099 · never reused
Internal UUID01a0ae87-0a4b-79d0-9937-6e926325dcac · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056099
StatusPUBLIC

Content hashes

Canonical text4c3a33353cfadff3e1c65e7426cf649ada8075067fbebf3d5021e666fe217b53
Markdowne76fbadf280b1cd485055b8e578cf79dd5d6fb53882756d2a9fa6b085c470a23
PDF
Publication page3d5d20e311cc021dbc167f1abfe2e914413a3f3d35d85a6bc09d0aadb20ed4f4
Manifest2420ff73337c500db087a1e46c6351b2be2558185d366a8c2eb813566e7b13c3

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
SignatureQQU8xC3z7gTyA1/KSb9b816ZPaGnde0kgNi4qucl5xN2BvSm9U43Q1mQW/QoJo5pHX4moXIgVPC/9pElTr5/CQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:38.309189ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056099
observed 3d5d20e311cc021dbc167f1abfe2e914...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:38.291491ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056099/manifest.json
observed 2420ff73337c500db087a1e46c6351b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:38.272079ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056099/publication.md
observed e76fbadf280b1cd485055b8e578cf79d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:38.252591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056099/publication.txt
observed 4c3a33353cfadff3e1c65e7426cf649a...
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.