OpenTechnical

OT-2026-000076123

Publication integrity record

Four bellows cup vacuum gripper, four zone face, pump fed, pressure sensor per zone, 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-2026-000076123) never changes.

Identity and time

Publication numberOT-2026-000076123 · never reused
Internal UUID01a0ae94-6a6e-7e35-91f2-d8996f660674 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076123
StatusPUBLIC

Content hashes

Canonical text777989c3e1370d081b277f95cbb764252f2a0b07b1226f0aca3a4ee0163cab05
Markdownb2ea3c6fcf6e6ad220a17884652ba13b85b6702ad1b4f52736f185830b506927
PDF
Publication page61d372e72fa4e8b19d40687e7c00cccca1a87157405c672a720c126aa14036f4
Manifest0ce619f921375ea403b87263be78b8f3a2b753df6a02eb39d1a85186c8b23fea

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
SignatureuVbgsLBkS3npoIJh5fp+Cx/7T0qT87LEauaIlFf27k0y7JBw6DyWQ6kr5XoogO9zK3Ezsrt+5rbH3HaLHHbODQ==
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

2026-09-17T10:11:06.203650ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076123
observed 61d372e72fa4e8b19d40687e7c00cccc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:06.061808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076123/manifest.json
observed 0ce619f921375ea403b87263be78b8f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:06.044140ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076123/publication.md
observed b2ea3c6fcf6e6ad220a17884652ba13b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:06.026167ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076123/publication.txt
observed 777989c3e1370d081b277f95cbb76425...
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.