OpenTechnical

OT-2026-000078642

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, vented 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-2026-000078642) never changes.

Identity and time

Publication numberOT-2026-000078642 · never reused
Internal UUID01a0ae95-7c2a-7411-8fcc-675831a11a92 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078642
StatusPUBLIC

Content hashes

Canonical text8286b6bd2e2673b8beef0840e8b287f06ea49bf31f47c6dcd53fa7f71bce25c2
Markdown9eef7c1c2a40ac2eef4378f5e4251f35a4f255a3b33278f7a9b97a9fc40c5c22
PDF
Publication page97852b826827079bf85d92ed7a3b6175c976ec6d417aa995721bd0d505dee1c4
Manifestf5bffaf28fb7d7a106de522da8c6f4ae8686890a711465b0c3489b6c599bc0c2

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
Signaturedy2wMY28EDNSslkPz4QJSgfUH+eoyOVcMpGnQDRl/EXpWCKvdKkAAldmBed+jy7YQQpsOne7uoyImyIGhxl4Dw==
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

2026-09-17T10:06:41.234706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078642
observed 97852b826827079bf85d92ed7a3b6175...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:41.216210ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078642/manifest.json
observed f5bffaf28fb7d7a106de522da8c6f4ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:41.196463ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078642/publication.md
observed 9eef7c1c2a40ac2eef4378f5e4251f35...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:41.179185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078642/publication.txt
observed 8286b6bd2e2673b8beef0840e8b287f0...
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.