OpenTechnical

OT-2026-000031072

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, sustained blow-off before 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-2026-000031072) never changes.

Identity and time

Publication numberOT-2026-000031072 · never reused
Internal UUID01a0ae74-3fb8-78d1-a811-2d46be52a252 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:49.275361Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031072
StatusPUBLIC

Content hashes

Canonical text925c78f42bad1e20477acc1501f194c69651b8ecc79b720df4e1e84a6406bd91
Markdown0eb987fad348bffcb0da3c143e3675be4fd8aee78dbbd289eef42a7902129978
PDF
Publication page3afda7e01fe6760ea4b2e89062579ae1f459dc86341db035e738f70ac33a29b9
Manifest1c0e584dda18654375dee333140cc62092ce5afeb404989d03947a83c18c9f81

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
SignatureDyYqsBnr6xEKmIq3cp/yGuIaEzsWzKHjcpXBU8KlJchxM6Vp2utI+u6VpTswIDv5VlfCvV/VfgHhydYvER8+AA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:40:17.377674ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031072
observed 3afda7e01fe6760ea4b2e89062579ae1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:17.351371ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031072/manifest.json
observed 1c0e584dda18654375dee333140cc620...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:17.332035ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031072/publication.md
observed 0eb987fad348bffcb0da3c143e3675be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:17.307873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031072/publication.txt
observed 925c78f42bad1e20477acc1501f194c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:37:39.560972ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031072
observed 3afda7e01fe6760ea4b2e89062579ae1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:37:39.542612ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031072/manifest.json
observed 1c0e584dda18654375dee333140cc620...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:37:39.525220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031072/publication.md
observed 0eb987fad348bffcb0da3c143e3675be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:37:39.508215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031072/publication.txt
observed 925c78f42bad1e20477acc1501f194c6...
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.