OpenTechnical

OT-2026-000091401

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, single stage ejector, pressure sensor per zone, 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-2026-000091401) never changes.

Identity and time

Publication numberOT-2026-000091401 · never reused
Internal UUID01a0ae9c-f16d-77db-ae47-77f2abcadc0b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091401
StatusPUBLIC

Content hashes

Canonical textecbb8860903778ebcf2d9f28f5a420e1037d1e18bd209004b587a42122d1b1de
Markdowna2af0b438a31eba0a29e94ffbf5d1b69d313574ed913f17cf0e8c9febc125704
PDF
Publication page746c78df04bc8d8a5aab90b86e0a75961b1de41c49bdc17c5e64529ef27bd0b4
Manifestfe46cf840c0873a0fc71e8185e9340d17a0b897b8f72d1c6ad8adec9faa9954d

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
SignatureI4/9so/4E2oKgs8+xWTrLyxX8YJxoOnnK3D+teTnVJr1zGc1lRbZ3a6MtmOE9x4aRDjU9116u1BQMJjtqc3yAQ==
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

2026-09-17T09:43:37.733600ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091401
observed 746c78df04bc8d8a5aab90b86e0a7596...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:37.712360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091401/manifest.json
observed fe46cf840c0873a0fc71e8185e9340d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:37.693868ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091401/publication.md
observed a2af0b438a31eba0a29e94ffbf5d1b69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:37.676412ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091401/publication.txt
observed ecbb8860903778ebcf2d9f28f5a420e1...
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.