OpenTechnical

OT-2026-000028053

Publication integrity record

Two cup vacuum gripper, two outlet manifold, single stage ejector, manifold pressure sensor, sustained blow-off 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-2026-000028053) never changes.

Identity and time

Publication numberOT-2026-000028053 · never reused
Internal UUID01a0ae72-a51f-72ee-a49d-9943aa2c9582 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028053
StatusPUBLIC

Content hashes

Canonical text0815e57dd18b8a478fc90e608043c01767f4bc7bbcd68807d4f5f9593a6d94b4
Markdowndeaaeacfaaa66d3d88c15920694533f433d9d56d3031479f76f10ad72f83ed5a
PDF
Publication page81484f7dc21719033636f244e042434ab14a112363037bf6a1c34c71f9bfd53c
Manifest751e92a8deda3fa943ec5582a1148de5455746cbed6d2b8f94a92b76f91fa7d4

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
Signature4ylNoqO7uDOO5MAZyjTFFdikwBhAYu4p2INSOWSvbZIM5dpLwjKLFnYNKRRZZ43aly2uZfo3fN1X/uLBiHFrAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:42:23.145187ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028053
observed 81484f7dc21719033636f244e042434a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:23.128632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028053/manifest.json
observed 751e92a8deda3fa943ec5582a1148de5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:23.108444ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028053/publication.md
observed deaaeacfaaa66d3d88c15920694533f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:23.089220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028053/publication.txt
observed 0815e57dd18b8a478fc90e608043c017...
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.