OpenTechnical

OT-2026-000091555

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, pressure sensor per zone, 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-2026-000091555) never changes.

Identity and time

Publication numberOT-2026-000091555 · never reused
Internal UUID01a0ae9c-f16e-7271-b67a-d9eedf8b8f14 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091555
StatusPUBLIC

Content hashes

Canonical text55c9b498548129db0a441c552f02dcf6a7fd81bd60e69099e406eba614678199
Markdownb730f972a2e70faded7ba1e2f747fa39c114272ffb0f4b8fd3a6b21ea3cd0612
PDF
Publication page14eaa4f0c01e1144c9481d605b2bc24ba8a135e7878743cc0904b29d6a51a338
Manifest7ae58471ebecd858b0c84340728bbeb3865d8ed0ca0a3f9eccd7521435424d09

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
SignatureTlwTPF7OraVrQJCEYBgxsv2BF4bOZnnbYWAqSxuALG1qAv62pxvQElKOX1dr8KNpC5NUfjn8IadjFhf9FoatCA==
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

2026-10-31T04:23:28.346749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091555
observed 14eaa4f0c01e1144c9481d605b2bc24b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-31T04:23:28.333496ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091555/manifest.json
observed 7ae58471ebecd858b0c84340728bbeb3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-31T04:23:28.318755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091555/publication.md
observed b730f972a2e70faded7ba1e2f747fa39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-31T04:23:28.301934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091555/publication.txt
observed 55c9b498548129db0a441c552f02dcf6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:49.455784ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091555
observed 14eaa4f0c01e1144c9481d605b2bc24b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:49.438826ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091555/manifest.json
observed 7ae58471ebecd858b0c84340728bbeb3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:49.422959ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091555/publication.md
observed b730f972a2e70faded7ba1e2f747fa39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:49.406277ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091555/publication.txt
observed 55c9b498548129db0a441c552f02dcf6...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent