OpenTechnical

OT-2026-000072666

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000072666) never changes.

Identity and time

Publication numberOT-2026-000072666 · never reused
Internal UUID01a0ae92-89d9-768c-9aff-915612801b7d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072666
StatusPUBLIC

Content hashes

Canonical text57306141d847f71e991067dd353e1ca711b2f8f616e449634265a65579a7eb42
Markdowne618ee687e2220cd248c202322151c515f28daa975d93a6cc3511514c97bd7da
PDF
Publication page34e203a69cd8e9fb36c7b92886d3b7b4a63b59278df9914c610b08f7285469df
Manifest78508f18dc18507240af056c19d10b84a95e646a9aa1a7330e5633ae85d14e7b

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
SignatureN9EQL5NZ5GZwsC3G/ngOEg2Tw3/W5xTQ58J3t56loNBjN4rJa7dsvpjGWg/iDmzIug8GHledS9rbkf36dhBsCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:22:32.032225ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072666
observed 34e203a69cd8e9fb36c7b92886d3b7b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:32.015686ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072666/manifest.json
observed 78508f18dc18507240af056c19d10b84...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:31.996865ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072666/publication.md
observed e618ee687e2220cd248c202322151c51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:31.976676ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072666/publication.txt
observed 57306141d847f71e991067dd353e1ca7...
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.