OpenTechnical

OT-2026-000052455

Publication integrity record

Four cup vacuum gripper, four zone face, six outlet manifold, pump fed, pressure sensor per zone, 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-2026-000052455) never changes.

Identity and time

Publication numberOT-2026-000052455 · never reused
Internal UUID01a0ae84-573a-7077-a50f-4c9f9d078f4f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:38:23.819394Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000052455
StatusPUBLIC

Content hashes

Canonical text2571e40bd3f8d35b87a63649dbafdd04894b4b8f6eaf12d71644c49a98dbed93
Markdownb5c5fcf65db2f51892d1878868d139e9328f6ef821ab4b246ae239e7f2ce136b
PDF
Publication page8328da30fd17b3bc3bdab7855958ed1ae3284c7d5f9208bffd8a198ae0b463cd
Manifest9c19644bda3a3fecc939b7c55963ddfa0694489c7b59e4cf5e7f1df33e6ae191

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
SignaturerrzrUZMeI9LTTO3xfy6bKUhfe5SJZ4i9osXrq19T/aLYE9rjphx83VY991G15loS15OYrrY4WERV37yob5bADQ==
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

2026-09-17T10:57:04.806486ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052455
observed 8328da30fd17b3bc3bdab7855958ed1a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:04.789892ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052455/manifest.json
observed 9c19644bda3a3fecc939b7c55963ddfa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:04.773103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052455/publication.md
observed b5c5fcf65db2f51892d1878868d139e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:04.755541ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052455/publication.txt
observed 2571e40bd3f8d35b87a63649dbafdd04...
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.