OpenTechnical

OT-2026-000072478

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum 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-2026-000072478) never changes.

Identity and time

Publication numberOT-2026-000072478 · never reused
Internal UUID01a0ae92-89d8-7390-90c3-eeb9d60baf19 · 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-2026-000072478
StatusPUBLIC

Content hashes

Canonical text47eddd7fd4f3d45a6007a8751019f3f28686823812776172afd41dcc9f115c80
Markdownbceca763ec9029bc5deef07c908db9c7679fa75623f7d5761fcbddf074366585
PDF
Publication pagec0008601b3f82542807eb0fe7c2832aab248527d43250b43e1ccd8b88b561a9a
Manifesta31b94ad876fab2b9d70218616c4e00f764d8c9f6be70355f8170ab8b49c0247

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
Signature+YL5MsRvqztQhZNKqs+TCA3hyW8ww54KdtsPhEuLUCzpMdur/csuJ6gyMWFp2xLbngl5StayAbhtUSN43cYRAg==
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

2026-09-17T10:22:18.261094ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072478
observed c0008601b3f82542807eb0fe7c2832aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:18.243672ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072478/manifest.json
observed a31b94ad876fab2b9d70218616c4e00f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:18.225938ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072478/publication.md
observed bceca763ec9029bc5deef07c908db9c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:18.207377ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072478/publication.txt
observed 47eddd7fd4f3d45a6007a8751019f3f2...
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.