OpenTechnical

OT-2026-000073114

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented 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-2026-000073114) never changes.

Identity and time

Publication numberOT-2026-000073114 · never reused
Internal UUID01a0ae92-efb5-7496-af01-8c39487339de · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073114
StatusPUBLIC

Content hashes

Canonical text2835a9287ae46dd8c81954d38ffc376cb5d70b2a6cf5fa4b88a9cbd8750d6203
Markdowne691c4d451e945a6ccc7ee50cd360640f9b1df0d7431183c4d8b3d80f8bb0a3d
PDF
Publication pageb9e1144a29bb23cf6faf6c09a4d2e52f2693a50c9c0df5978b4bbc886892fdd2
Manifest8a04820fdbf455090be7d62f4ee865688a0ce823e6b4e7ea0c60b29427b9c68b

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
SignatureYdmdiOC8mekxDqefcLoeDC4/18M8LjwQ7I36Q/iTBAx7JqA0G4t+owy5g4u782GlfIuTbH58e6aMmoBnCVvTAw==
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

2026-09-17T10:21:02.562390ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073114
observed b9e1144a29bb23cf6faf6c09a4d2e52f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:02.542408ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073114/manifest.json
observed 8a04820fdbf455090be7d62f4ee86568...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:02.524088ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073114/publication.md
observed e691c4d451e945a6ccc7ee50cd360640...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:02.503723ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073114/publication.txt
observed 2835a9287ae46dd8c81954d38ffc376c...
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.