OpenTechnical

OT-2026-000090144

Publication integrity record

Four cup vacuum gripper, four zone face, six outlet manifold, single stage ejector, manifold pressure sensor, 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-2026-000090144) never changes.

Identity and time

Publication numberOT-2026-000090144 · never reused
Internal UUID01a0ae9c-428f-7d4a-953c-549bacc1bc84 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090144
StatusPUBLIC

Content hashes

Canonical textc79bbb83daf51497edb2e96fe5605f6a078a2aa3b53ee22cfd7fcb95bb00a381
Markdownce38bcd1b9b28204151386601963f9c6c830feb337e3cd30dd05cef4dc156004
PDF
Publication pagefd1e4f390c6b93ff4a532831caa40ef84bc69a8e1e0747da161ff9ae301c483f
Manifest693e64e259b31f9b0cb0310418b4007961cfb3a3657b81cfb3bf441a376b6956

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
SignatureWnjVsYzakhgTYMha1Mg56Igm0n9rkgC2hAST2JTd1iD+ue7oGjW9u1hTlVEnePjo40B8sJ+WiwsTx3uqUug6DQ==
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

2026-09-17T09:45:39.218060ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090144
observed fd1e4f390c6b93ff4a532831caa40ef8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:39.199575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090144/manifest.json
observed 693e64e259b31f9b0cb0310418b40079...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:39.180110ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090144/publication.md
observed ce38bcd1b9b28204151386601963f9c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:39.161135ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090144/publication.txt
observed c79bbb83daf51497edb2e96fe5605f6a...
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.