OpenTechnical

OT-2026-000073754

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, manifold pressure sensor, vented 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-2026-000073754) never changes.

Identity and time

Publication numberOT-2026-000073754 · never reused
Internal UUID01a0ae93-2b8d-731b-94fa-0da8046af038 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073754
StatusPUBLIC

Content hashes

Canonical text8abc1d93675d24d4a09dee9ba5f3530dbb17ad8d0843ed2ecf2483cd79b13290
Markdown719ca139c5bd5b00430db53165e696019cb7c36362db3a39940e4bf4f265b614
PDF
Publication page4adc18ebee51fdb0210a1fcda2b994de5dde066e2a295ee31def61e746db891c
Manifest39574d9868a130fdef1f7079e3f91371aaac3eb291961ed0a5c74af62c88098b

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
SignaturesscMiiQFPxVMlYxbQz+v6R2SXarKk68Gp62wKAy1T9CLWT8JxXx1cVC3tOZ2Y1a17SvEbshgyo93v2lfBb2MBg==
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

2026-09-17T10:19:50.697100ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073754
observed 4adc18ebee51fdb0210a1fcda2b994de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:50.678201ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073754/manifest.json
observed 39574d9868a130fdef1f7079e3f91371...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:50.659414ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073754/publication.md
observed 719ca139c5bd5b00430db53165e69601...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:50.639457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073754/publication.txt
observed 8abc1d93675d24d4a09dee9ba5f3530d...
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.