OpenTechnical

OT-2026-000081755

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, 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-2026-000081755) never changes.

Identity and time

Publication numberOT-2026-000081755 · never reused
Internal UUID01a0ae97-0f74-7be5-8442-90faed9e5d77 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081755
StatusPUBLIC

Content hashes

Canonical textf06dc633719f85509d9dc08b8552501106bdd2e9376ced6d82f3efa22993c9b7
Markdownbc9a5d09de8e5ff9f19f980843bbc89be59b0cd8da4343922733b81c7e9f449c
PDF
Publication page79163bdb11c9b0be6020a9d2ac3c8c19488cfa1978545028143ae26fe23e9f8a
Manifestce633b9e383ec523527c72121efa0415a31139137b69f010bb7a148772dfc090

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
SignatureiA5uHRLBcU+jNUM37osnFIzFpJ/gPbw32EBQAXtYwGrU77opTdL2StAsCbCOuqkza2MaVHzjpxkYUW88oDyqCQ==
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

2026-09-17T09:59:50.510168ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081755
observed 79163bdb11c9b0be6020a9d2ac3c8c19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:50.491933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081755/manifest.json
observed ce633b9e383ec523527c72121efa0415...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:50.472065ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081755/publication.md
observed bc9a5d09de8e5ff9f19f980843bbc89b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:50.455417ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081755/publication.txt
observed f06dc633719f85509d9dc08b85525011...
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.