OpenTechnical

OT-2026-000057883

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, pump 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-2026-000057883) never changes.

Identity and time

Publication numberOT-2026-000057883 · never reused
Internal UUID01a0ae88-6ed8-7d43-ae6b-433387d57e74 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057883
StatusPUBLIC

Content hashes

Canonical text8fa65d6eca0058fad1407e16e5294d1638c4fad7756f56256368502e6ab0a45d
Markdown262d525a39140b5fd51c3ae242b7ee6468a011b31bf545ac01ed8afaf337a1ab
PDF
Publication pagefef8a26bc37da1272c69cb8c68e96008291e80f725d068ae12119db4c5732aee
Manifest3200d4be00c3bdd4b834ea83f5822ed1bef28a0c57f831abc84017ddd6c00d43

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
Signature7ZsMyARHfLUSQLlWhXrZ7huiNjgTs6psD8I5wvZDW9IwpXeaDszCCBGLFBMrbpzqUQD6tWDjI6rR7AeLs45BBw==
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...

Independent retrieval

2026-09-17T10:47:28.338803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057883
observed fef8a26bc37da1272c69cb8c68e96008...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:28.320173ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057883/manifest.json
observed 3200d4be00c3bdd4b834ea83f5822ed1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:28.299629ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057883/publication.md
observed 262d525a39140b5fd51c3ae242b7ee64...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:28.282019ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057883/publication.txt
observed 8fa65d6eca0058fad1407e16e5294d16...
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.