OpenTechnical

OT-2026-000072400

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, 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-2026-000072400) never changes.

Identity and time

Publication numberOT-2026-000072400 · never reused
Internal UUID01a0ae92-89d7-7644-9f8f-e571c3a80a25 · 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-2026-000072400
StatusPUBLIC

Content hashes

Canonical texte976702afdd725319a74b15caf7946df1a39924cf0fadf85d13eae44188263bd
Markdown248e4fecfe646bac0c80eebce88896c2dbd8426374feb31da97abe681c5bf60d
PDF
Publication page3c8990327af3e9f1cddadf2113bbec3f60ecfa9ca7b23dfede59fd0ee2eb9e03
Manifest43420bc09ac0da8f8c8a258749965dbae29f0400802fe81079af41c73144e206

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
SignatureqtURsjmtaVkBP11St6+WglE3fdYc9ske3wSxPf8gpBPLxL1SsC8AgqVKql5UF5vYY3E22ijKLeYtXHgqj7/9Dw==
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

2026-09-17T10:22:12.655972ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072400
observed 3c8990327af3e9f1cddadf2113bbec3f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:12.640478ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072400/manifest.json
observed 43420bc09ac0da8f8c8a258749965dba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:12.623305ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072400/publication.md
observed 248e4fecfe646bac0c80eebce88896c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:12.605176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072400/publication.txt
observed e976702afdd725319a74b15caf7946df...
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.