OpenTechnical

OT-2026-000049515

Publication integrity record

Foam pad vacuum gripper, two zone face, three 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-2026-000049515) never changes.

Identity and time

Publication numberOT-2026-000049515 · never reused
Internal UUID01a0ae81-8f7c-75d6-bb4b-caec459a5233 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049515
StatusPUBLIC

Content hashes

Canonical text3599e47b3bcf6c3ed5400eeb8c8c0c4f3975de0161871841791c373a92e7fd2c
Markdownbfabd5c02fd103da6da6e993734bcd5b96ff094c591a53ba4fc372058eca1dbf
PDF
Publication pagefa77a1a15c3e719d10cc2b256e53e6c406cabd2ca87a9f082ffc139bfe4c3dbf
Manifestf93f50bb78135fff55dcebc1ff1717fae75391c39482a182671d596146db9c63

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
SignatureZUgtIJI5C6J+KQtPzKo6NCtuBAOoD57JqoKOALM7hQRKTrQugwe8pWKv+DJCBXVb6YyigI0qpqZ9kJfj9yosCw==
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

2026-09-17T11:02:22.409964ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049515
observed fa77a1a15c3e719d10cc2b256e53e6c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:22.368666ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049515/manifest.json
observed f93f50bb78135fff55dcebc1ff1717fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:22.351095ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049515/publication.md
observed bfabd5c02fd103da6da6e993734bcd5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:22.309639ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049515/publication.txt
observed 3599e47b3bcf6c3ed5400eeb8c8c0c4f...
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.