OpenTechnical

OT-2026-000080171

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, two stage ejector, 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-2026-000080171) never changes.

Identity and time

Publication numberOT-2026-000080171 · never reused
Internal UUID01a0ae96-7e76-7d5f-8ca5-83b882a71336 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:13.512436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080171
StatusPUBLIC

Content hashes

Canonical textb1d95332edce2d4137e26d0a81ed9d90b02ec14a560bc533760870134baed717
Markdownff243002c4b1e610601274e0a9b4719f20879fed7e40e9a8a9d60977be2a61fc
PDF
Publication page5828a235d77cc5871ec2b4de6d97ca50d7429f35433cad8e9b4c43c2ea16f2a7
Manifest84e2f702492ab2a5085b472d9751e408c9fc4b19bc3b4b991df3b94ed4470a56

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
SignaturetE/FU6bjs5cUg+Jo8nQqFOcVwisLc+UIoQI080iG/HAM+5LFvR9VcY95lUk7/QF9QIngtrpoufKCHVoMcsrmAQ==
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

2026-09-17T10:02:36.366181ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080171
observed 5828a235d77cc5871ec2b4de6d97ca50...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:36.347140ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080171/manifest.json
observed 84e2f702492ab2a5085b472d9751e408...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:36.328109ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080171/publication.md
observed ff243002c4b1e610601274e0a9b4719f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:36.306823ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080171/publication.txt
observed b1d95332edce2d4137e26d0a81ed9d90...
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.