OpenTechnical

OT-2026-000072852

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, 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-2026-000072852) never changes.

Identity and time

Publication numberOT-2026-000072852 · never reused
Internal UUID01a0ae92-89da-7611-822a-6896fa9e72ce · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072852
StatusPUBLIC

Content hashes

Canonical text014b931a29aad981d3324776fd7c3d53cd1a7729557b760fb08647cbfb93ebc4
Markdown7fd633806ada3524cd79c86746e968c4f36027ea4a9d5d6c11c26ebfe7ff4d38
PDF
Publication paged2d3c6e2a07bef7a1c78b7250801b99c92131bd17ce103203be07e2a08334d3f
Manifest2330f73aa4a8a7f82e62eb54eb33e3a069acc8254d4cbed9d2e52c5025df3696

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
SignatureiT5o43FADAt2PldrhRoeeOgvIZCYs37/zYnbLcEbG12+CfqvSy4iNsvcwG8L9Ae//dd/nIDEWx3gS3E28JZmAQ==
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

2026-09-17T10:22:46.503041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072852
observed d2d3c6e2a07bef7a1c78b7250801b99c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:46.486128ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072852/manifest.json
observed 2330f73aa4a8a7f82e62eb54eb33e3a0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:46.470866ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072852/publication.md
observed 7fd633806ada3524cd79c86746e968c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:46.454485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072852/publication.txt
observed 014b931a29aad981d3324776fd7c3d53...
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.