OpenTechnical

OT-2026-000104275

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pulsed blow-off after 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-2026-000104275) never changes.

Identity and time

Publication numberOT-2026-000104275 · never reused
Internal UUID01a0aea5-3420-7c40-9f99-6d11ba34ef3e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:17.519068Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000104275
StatusPUBLIC

Content hashes

Canonical text4ea8e185481d467726df45a74c79bd4d4eaf3abecc7459a132a9edfca0e544df
Markdownf49df8bc4986289b69719df385acf628d815eb244cc6c17be578bb1196a89fc7
PDF
Publication page1a3fdcd76943756eb409f430d24b68a8da71cc09c8f12734aa1d02c90aaa6086
Manifest0cef6d2a9f0202b860fdcdc489b2117dfdd69aa8a224782f431f277e8a818770

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
SignatureHuONdBSq4EhedM6iyg12ko+q1JwWobdROzjqPfqyx7HO7g2ASmajtDXgF6naB8D5exZN/uJ92Ph15MZX6RDkCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:20:23.467970ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104275
observed 1a3fdcd76943756eb409f430d24b68a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:23.449788ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104275/manifest.json
observed 0cef6d2a9f0202b860fdcdc489b2117d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:23.432315ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104275/publication.md
observed f49df8bc4986289b69719df385acf628...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:23.414380ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104275/publication.txt
observed 4ea8e185481d467726df45a74c79bd4d...
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.