OpenTechnical

OT-2026-000075428

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-2026-000075428) never changes.

Identity and time

Publication numberOT-2026-000075428 · never reused
Internal UUID01a0ae93-f201-70ba-8ec9-6799de8f6300 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:26.476108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075428
StatusPUBLIC

Content hashes

Canonical texta2bd9cf9949091d61813531c24fb55dd7b5bf03be105d5f810df1e83eaf0367e
Markdownaeb7f0b791f82fb6ca3b75141e9dbd6e14f057ee1991035197158e03b03c652a
PDF
Publication page40d011dbb9717cf3ac7f8b9b24c8c3a5baa183c6dc3e5b76cc572bcc9b06c069
Manifestc61187cdc28ead7459d1c23263cfb5b9b6c7a52d4592c57ddd7c7d249b1cc920

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
SignatureJdrXGH8lW0UKWAaZIyrx+g4+dyA/h64VwwNXpM52QEWyf6HiP+cFEpP4V4TuYDJtceEQhBgRkLUbDJc8Qm2EBQ==
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

2026-09-17T10:17:36.227107ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075428
observed 40d011dbb9717cf3ac7f8b9b24c8c3a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:36.206155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075428/manifest.json
observed c61187cdc28ead7459d1c23263cfb5b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:36.064174ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075428/publication.md
observed aeb7f0b791f82fb6ca3b75141e9dbd6e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:36.044884ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075428/publication.txt
observed a2bd9cf9949091d61813531c24fb55dd...
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.