OpenTechnical

OT-2026-000057431

Publication integrity record

Foam pad vacuum gripper, three zone face, three outlet manifold, pump fed, supply line pressure sensor, pulsed blow-off 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-2026-000057431) never changes.

Identity and time

Publication numberOT-2026-000057431 · never reused
Internal UUID01a0ae87-d5c7-7063-8275-528f94be742a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:12.973410Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057431
StatusPUBLIC

Content hashes

Canonical text9761fdfc84df7be26bbb2f88258062fcae1694db7601979779b63f95997781e9
Markdown886d4c905ec559fd309f47725e849d2b1b48a8a4a70ac3e461839dce23d50e28
PDF
Publication page705b1bf649a0e408fc5747c24e784269ebe655c403aa97fa94d9780dc5a153a4
Manifeste1f7d0c89a9398e94839564b12c4ce40bca7f5584c5ad871d4dbf4abb997b064

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
SignaturezU9lFLWc9yEnluznHtkqLgWIcnxcMlwuYHIsCaZ4ezOytu9RWdRqbku0/GhV+r9/WlIFCIZsv3kacFfCTeNADw==
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

2026-09-17T10:49:43.474089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057431
observed 705b1bf649a0e408fc5747c24e784269...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:49:43.455683ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057431/manifest.json
observed e1f7d0c89a9398e94839564b12c4ce40...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:49:43.437914ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057431/publication.md
observed 886d4c905ec559fd309f47725e849d2b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:49:43.419470ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057431/publication.txt
observed 9761fdfc84df7be26bbb2f88258062fc...
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.