OpenTechnical

OT-2026-000005506

Publication integrity record

Porous face vacuum gripper, six outlet manifold, plant vacuum fed, vented after set down

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-2026-000005506) never changes.

Identity and time

Publication numberOT-2026-000005506 · never reused
Internal UUID01a0a93b-4127-7bd9-9354-a7e7748ca8dc · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:00:27.945757Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005506
StatusPUBLIC

Content hashes

Canonical textd7dcd31bcd90b24f2e949969d42e30825f3d685157f85e129a4569714f7b28ca
Markdown463fbd466da6b76005a898b340dec1c3e4af2a25e7a20c74b5c2fd66115323d5
PDF
Publication pageb6b5fd945bb74ca0e5c605919c746cec2e0efc9c88ea4c4647e78eefe7b7e41b
Manifest826f2e91124ad48166edd35279539233168e9732da272cd36d1c68e80928e0f7

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
SignatureVeVDsD5BfSCVUHaGxcfWrx+IAzTiqvnLhinnm2KskHFRxpTf2zabA0CcrUMI/ArMHlAt4MlVmXiccL+U8hQOBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:10:32.892405ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005506
observed b6b5fd945bb74ca0e5c605919c746cec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:32.879535ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005506/manifest.json
observed 826f2e91124ad48166edd35279539233...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:32.744411ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005506/publication.md
observed 463fbd466da6b76005a898b340dec1c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:32.731086ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005506/publication.txt
observed d7dcd31bcd90b24f2e949969d42e3082...
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.