OpenTechnical

OT-2026-000013337

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, 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-2026-000013337) never changes.

Identity and time

Publication numberOT-2026-000013337 · never reused
Internal UUID01a0ae6d-6fc9-76fa-84b1-2fa2075bf2b7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013337
StatusPUBLIC

Content hashes

Canonical text4c28393754c37f9873295c45be4b378d632dc829195baf2179c4ea75fae854f5
Markdownd1e45d8ead8c5cc3e406d4aca62df270921858c6375f01383b67fb2238e61d74
PDF
Publication page1d97ff72fea07e4332f2642c6925d84e42f80bd798a367c98112ab42eb611b67
Manifest5f7493ab7c8ee9ba4abe03b5066afa3556449d70e3f559cd8139c70ee180c07c

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
Signature7cloj5TceY7rlLMt8GNyRttCQcKaTJoudM3gZBQ2D0gu1K6LtUWzhTbvR836iPYHU1L66f0BhM62X7QvvJitAA==
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

2026-09-17T12:09:46.776275ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013337
observed 1d97ff72fea07e4332f2642c6925d84e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:46.756228ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013337/manifest.json
observed 5f7493ab7c8ee9ba4abe03b5066afa35...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:46.734436ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013337/publication.md
observed d1e45d8ead8c5cc3e406d4aca62df270...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:46.715257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013337/publication.txt
observed 4c28393754c37f9873295c45be4b378d...
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.