OpenTechnical

OT-2026-000074628

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented before set-down, on a tool changer

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-2026-000074628) never changes.

Identity and time

Publication numberOT-2026-000074628 · never reused
Internal UUID01a0ae93-ac2a-7c76-9d08-d4f12791a3bf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074628
StatusPUBLIC

Content hashes

Canonical textd038836d1a64b76745192889e47242ca0835169ebba0839bd80fa6d7029d1823
Markdowne0d815ad57909bf9789ccf7e912c4cdc994ea493f5e4fc43af9d2ab5c201b4f3
PDF
Publication page454bab2e05c8c9d9292c9303e16d08af7e55ed802eb8506c9dd9e0711b3ab7bc
Manifest5a65f59fa0e9eafb93e29e74df3f7d9c7dbccd8cabae228822412c6c3c0b47f7

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
Signature5UNSKsKj+LknbinDm1grPs3mtcpT/T87crgBfH0ONo2GFXOvkfNvuUb9XbI+VOH/68lY6VM4M6cPtvtc2iXqCA==
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

2026-09-17T10:18:10.539706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074628
observed 454bab2e05c8c9d9292c9303e16d08af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:10.520226ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074628/manifest.json
observed 5a65f59fa0e9eafb93e29e74df3f7d9c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:10.499973ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074628/publication.md
observed e0d815ad57909bf9789ccf7e912c4cdc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:10.479385ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074628/publication.txt
observed d038836d1a64b76745192889e47242ca...
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.