OpenTechnical

OT-2026-000104272

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pulsed blow-off after 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-2026-000104272) never changes.

Identity and time

Publication numberOT-2026-000104272 · never reused
Internal UUID01a0aea5-3420-77d0-b259-487467274fc3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:17.519068Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000104272
StatusPUBLIC

Content hashes

Canonical text627f73aa4a5ec1397f818fad32ed81508af1eb83c1ea04de8947e01eae94c2a3
Markdown21b41aee7cfcc64dddd8d6d7d43157ef415fa4f660f0d7918e05f99b4f2fc53f
PDF
Publication page2a3d706cf683a2182ff578e8c75d2af668c5b96cf02ca52c98ee9db4edfbcf98
Manifest99f4b5eb716b9e2f158ec6e5906832d8c5b7778a7b9b064ca9b8b6f35abf2175

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
Signature5/QaksrAZgVMjhXY/tRCZkvOBWPTqmpHefEb/qSCrzkYwGnU7HpeC0HMqDnySe17IDJyCNvH5iBu6SyHgPW5CQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:20:23.228203ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104272
observed 2a3d706cf683a2182ff578e8c75d2af6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:23.208935ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104272/manifest.json
observed 99f4b5eb716b9e2f158ec6e5906832d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:23.192577ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104272/publication.md
observed 21b41aee7cfcc64dddd8d6d7d43157ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:23.176264ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104272/publication.txt
observed 627f73aa4a5ec1397f818fad32ed8150...
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.