OpenTechnical

OT-2026-000042404

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, pulsed blow-off after 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-2026-000042404) never changes.

Identity and time

Publication numberOT-2026-000042404 · never reused
Internal UUID01a0ae7a-5d75-76f6-856e-fdf96e560750 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042404
StatusPUBLIC

Content hashes

Canonical text2864860a1bf809340b64b1f595f5daea88fe7106243b1d090a9ce1804326329b
Markdown021e96740d34e4a8a162217e4462e755bd8f44bbc7f8ce509c34f82d0518c6d1
PDF
Publication page68153d3d7df5d5130e8264eaf2bf25b46e1688606346888046a8c2c0efb0d5fb
Manifest416a2255a660153d4b9af7d275115c8854c33ec6c5319c35f15d0fb9d502058a

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
SignatureHXITwhpsqO3BbhBTK8fuMHjGe4Iq0T57R1Z9bwgl06n3k7pTP81qwGzKAZUrksIxl9QBeipyCAlI6/d/y8a/BQ==
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

2026-09-17T11:16:12.001896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042404
observed 68153d3d7df5d5130e8264eaf2bf25b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:11.985772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042404/manifest.json
observed 416a2255a660153d4b9af7d275115c88...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:11.968167ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042404/publication.md
observed 021e96740d34e4a8a162217e4462e755...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:11.949361ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042404/publication.txt
observed 2864860a1bf809340b64b1f595f5daea...
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.