OpenTechnical

OT-2026-000056409

Publication integrity record

Four cup vacuum gripper, four outlet manifold, 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-2026-000056409) never changes.

Identity and time

Publication numberOT-2026-000056409 · never reused
Internal UUID01a0ae87-4bd2-795d-889e-26c3ab6bec7e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:37.517586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056409
StatusPUBLIC

Content hashes

Canonical text3752daf933a97053eb0e8523a4110e2f7ffd278bb32054e3ae099b2954b05de4
Markdown3cec443d67e415bdce7185448cb83a6792ce0bf8ef37fe966da496f7f5684ead
PDF
Publication page18f000ccfa646b9f522ff15faf9996314a317b7660c053b5415e1d77e7c0da07
Manifest5080687e79acf8db24a16e114638b07f38478666568df4ff60f9126ad3b9c07b

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
Signature6PK7MgncWsLonsUP03BCeolEN4dwARW5vxjI9Id05VEvm3wtOW+hFs/Vnz8yoMiVqJWScPjcBrqIUXGD+BRQCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:50:56.393675ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056409
observed 18f000ccfa646b9f522ff15faf999631...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:56.377345ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056409/manifest.json
observed 5080687e79acf8db24a16e114638b07f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:56.361177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056409/publication.md
observed 3cec443d67e415bdce7185448cb83a67...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:56.343443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056409/publication.txt
observed 3752daf933a97053eb0e8523a4110e2f...
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.