OpenTechnical

OT-2026-000085622

Publication integrity record

Two bellows cup vacuum gripper, two zone face, plant vacuum fed, sustained 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-2026-000085622) never changes.

Identity and time

Publication numberOT-2026-000085622 · never reused
Internal UUID01a0ae99-aaad-7ab1-9c22-ef53683332f4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:41.564662Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000085622
StatusPUBLIC

Content hashes

Canonical text8007276fb8bd5e179227cade214dc229d9b5383d295bc72d45130562d37c6168
Markdown1bc141c40bac7e55f5bb9f4a207c267446cf56ee7054fdfa4935887ff40388d8
PDF
Publication page4c66ef9667d5e641dbf7c5b24660ed31819f38c7cab1178237d979a2b2b1135f
Manifest115792d7b871e7e3b369aecfd62162619bb137bd43685e7d4f454fdd7aaf1615

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
Signatureh2f+hTw1H4Aimu5VhCujPU2ZbBh273RarNg2uLxtTbidFZYbwZvYHagO4F5sox2dcg3Bx50FUBHHMurT3UcKCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:54:30.333551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085622
observed 4c66ef9667d5e641dbf7c5b24660ed31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:30.313559ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085622/manifest.json
observed 115792d7b871e7e3b369aecfd6216261...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:30.278716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085622/publication.md
observed 1bc141c40bac7e55f5bb9f4a207c2674...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:30.239025ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085622/publication.txt
observed 8007276fb8bd5e179227cade214dc229...
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.