OpenTechnical

OT-2026-000090063

Publication integrity record

Three cup vacuum gripper, three zone face, six outlet manifold, two 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-2026-000090063) never changes.

Identity and time

Publication numberOT-2026-000090063 · never reused
Internal UUID01a0ae9c-428e-7f61-a239-48eaeb0bc615 · 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-2026-000090063
StatusPUBLIC

Content hashes

Canonical textb9b5a40783eb28874f35b61db534a7bae688a70f8d43f12416fd7cb17f3cb11f
Markdownd9dbf63c384e42eac12f8ca61dccef59b66afde3cb3b4884193b06af3c4cc685
PDF
Publication page5d02c1e7b8fdf328f3a41fce9e51fe8047d53ecf1cfa485054547de2e0045266
Manifestf53f62348a7c11de90626ddc80e2fc6cc58ce07fdcf671f34580a4836c2944c9

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
SignaturemlWhvpKASPNF3smRXHE3Sms/vE+b9fT5FFXthPfIRYsrfJ+HuSjPTlAWiHQXTMvgvTTltiiOAXemoLOfDOqVAA==
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

2026-09-17T09:45:28.501910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090063
observed 5d02c1e7b8fdf328f3a41fce9e51fe80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:28.484628ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090063/manifest.json
observed f53f62348a7c11de90626ddc80e2fc6c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:28.467117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090063/publication.md
observed d9dbf63c384e42eac12f8ca61dccef59...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:28.448649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090063/publication.txt
observed b9b5a40783eb28874f35b61db534a7ba...
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.