OpenTechnical

OT-2026-000053275

Publication integrity record

Three cup vacuum gripper, three zone face, pump fed, supply line pressure sensor, pulsed 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-2026-000053275) never changes.

Identity and time

Publication numberOT-2026-000053275 · never reused
Internal UUID01a0ae85-0a15-7b3d-a871-eee42221c802 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:39:09.762364Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000053275
StatusPUBLIC

Content hashes

Canonical textf85f356b9c2178a78fc772391def159ebbfdd2890b5555cb32132c656b9704a7
Markdown55df53ac0fcc1705e025c07cb47544a3bf9a8193579ed01c83cdce1d4eab8fb7
PDF
Publication page950f8a0bff6383fa74dd8247ef5955b8809702e6847a21298054adaf5c581c25
Manifest37ae669a05ac221809a71a3bf6a52b330d765110849b60e67ff7326644020363

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
SignaturetiCNQXnP8I/47UZZ8DrLgihSSxpPy0FN9DTC+IF4r0/Vne8oCyRTE0lBz73ftAtNdtUs2mKa1dBquiccxiDrBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T08:41:01.290126ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053275
observed 950f8a0bff6383fa74dd8247ef5955b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:41:01.268504ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053275/manifest.json
observed 37ae669a05ac221809a71a3bf6a52b33...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:41:01.246551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053275/publication.md
observed 55df53ac0fcc1705e025c07cb47544a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:41:01.224201ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053275/publication.txt
observed f85f356b9c2178a78fc772391def159e...
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.