OpenTechnical

OT-2026-000072925

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, single stage ejector, supply line pressure sensor, pulsed 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-2026-000072925) never changes.

Identity and time

Publication numberOT-2026-000072925 · never reused
Internal UUID01a0ae92-c814-734a-b5ae-8111cace56d7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:10.336919Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072925
StatusPUBLIC

Content hashes

Canonical texta9df7f3c5a548bdecc64a60b4e196d26914181deeaa3de61dd922f941384a168
Markdowna523a473b8e2bc722b60f3625bd2676ebc0cf4b666a5ae5203dedafcac4147b4
PDF
Publication page71321b01d4c8d38df7b5d5d09b25e58e2e66734c95a79e1b9ef620c744e5d679
Manifest1b2b7f424c095351aa48c4bd9de00111688a346a9020850c61149d875e17c18e

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
SignatureQxBNFyZpS9Wf9SqXdZ+xCbmlC9qDHhXHmJSGiITRtDbLSfi+SH1TmZlyJAxZEolz0ta6ifXDTINSUbI+DJZ4AQ==
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

2026-09-17T10:21:50.399614ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072925
observed 71321b01d4c8d38df7b5d5d09b25e58e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:50.380964ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072925/manifest.json
observed 1b2b7f424c095351aa48c4bd9de00111...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:50.358268ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072925/publication.md
observed a523a473b8e2bc722b60f3625bd2676e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:50.342820ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072925/publication.txt
observed a9df7f3c5a548bdecc64a60b4e196d26...
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.