OpenTechnical

OT-2026-000043629

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, sustained 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-2026-000043629) never changes.

Identity and time

Publication numberOT-2026-000043629 · never reused
Internal UUID01a0ae7b-92d0-71c9-97ec-78f96597fe68 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043629
StatusPUBLIC

Content hashes

Canonical textf548fbb457c38f92f1dca35b1ae15e548ed2e8f07f42b2a3fee5aa0b982fddee
Markdownd91784eb728e60b873a4b30d8e0ec196a83b4e7eb26139e30fb52d15b979de08
PDF
Publication pagedbe51bbb67286933760faeb008df5617d85d728eced4b5a81e9e71b3674584b9
Manifest3b5f034a2f4d48d5e0174e1bd8c85412b335cd04b67896ebbb42fed1d4b5e5f3

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
Signature7FsoIU8z9NGF7QcuQEAKGsms2Wnw2fvCTylurc0NLY0cJxBe2sJMBHKs8W8luLjVUZ5wrRySKzXsf8OwkQAYCQ==
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

2026-09-17T11:13:06.116648ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043629
observed dbe51bbb67286933760faeb008df5617...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:06.099330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043629/manifest.json
observed 3b5f034a2f4d48d5e0174e1bd8c85412...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:06.081895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043629/publication.md
observed d91784eb728e60b873a4b30d8e0ec196...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:06.063544ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043629/publication.txt
observed f548fbb457c38f92f1dca35b1ae15e54...
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.