OpenTechnical

OT-2026-000057481

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, manifold 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-2026-000057481) never changes.

Identity and time

Publication numberOT-2026-000057481 · never reused
Internal UUID01a0ae88-2692-7d2f-9fbd-66f13381ec5f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:33.513637Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057481
StatusPUBLIC

Content hashes

Canonical text140828af465c71b309c597ee0534e08cb3fa484144cbc4b81ad48538fe4cfa4f
Markdownbacf3c0bc620a7b490a1262ddbe47e5b3669332141a397acda79e3769bc0756c
PDF
Publication page524cd2dd7861ba01a0a7a0867ca0f822c608b72c4607a681ea0cd0e998d19eda
Manifest399c010235225dce87f0fbe12135aa28d0d2d1a1108fcad0734a8846273fce45

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
Signature8mzb9V0ia1zjpzCQK/+2d2AddFVnpMLa8HqyiuaAaCXtsDA8yNpVxcncv6+/Q8mO+zMcUWo6yJ70rrRmOU2YDQ==
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...

Independent retrieval

2026-09-17T10:48:00.154792ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057481
observed 524cd2dd7861ba01a0a7a0867ca0f822...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:00.136481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057481/manifest.json
observed 399c010235225dce87f0fbe12135aa28...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:00.118086ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057481/publication.md
observed bacf3c0bc620a7b490a1262ddbe47e5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:00.098425ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057481/publication.txt
observed 140828af465c71b309c597ee0534e08c...
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.