OpenTechnical

OT-2026-000012525

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, 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-2026-000012525) never changes.

Identity and time

Publication numberOT-2026-000012525 · never reused
Internal UUID01a0ae6d-39f7-726e-a32b-9dc5e0b96046 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012525
StatusPUBLIC

Content hashes

Canonical text9e078a661045fb2e766b12f4efb1f1d60b25a128ef5d4f3f89d0fb5670c1f2d9
Markdowncae74ba345944352d749feca571e8ee1667c9ff6e405433ca85c7fa9ac6f79d1
PDF
Publication page2326d649c4e966886b355def88dc1ea2991fde95dfdcf64e2a38fe3ce713f57c
Manifest46483145959de48031e032770521f775dfa475800e7a9ac87f0d2e86e744d198

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
Signature84vlrLZmEju6rQoVQjB03u0rx1QwqyOG9bbjDwXWO4H90ntapvtBHMegvI66rltS3CahHMHigk/PfmqsoDDhDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T08:44:46.985878ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012525
observed 2326d649c4e966886b355def88dc1ea2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:44:46.743533ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012525/manifest.json
observed 46483145959de48031e032770521f775...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:44:46.496018ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012525/publication.md
observed cae74ba345944352d749feca571e8ee1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:44:46.224573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012525/publication.txt
observed 9e078a661045fb2e766b12f4efb1f1d6...
fetched by grabo-systems from 34.44.131.203, 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.