OpenTechnical

OT-2026-000030400

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, single stage ejector, sustained 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-2026-000030400) never changes.

Identity and time

Publication numberOT-2026-000030400 · never reused
Internal UUID01a0ae73-e503-7990-bec4-ef7debda32f8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:26.007257Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030400
StatusPUBLIC

Content hashes

Canonical textd2671ef25d51f3c4ce8274f378f3b8da3125fe92158d1f232bcd8d98ec6ef36b
Markdown2d248c4e585af4cee848b79907fcc5458c3f4137a80758edd025b4ccc48b4cce
PDF
Publication page317b37f671cf99bec0e999983e26d8328cd460d248216d8e5f178c54508c1d7b
Manifest7ec0e0ad29a11acc8972bc3f0384c5e72cc923053835e7da3400b41640d32a9f

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
SignatureTJSD25HpLgZWn20yheGxK6eWmxgJjdwfQuvXG+jSPHURxlHcCkLrKfQF7+G/4mHkE7cQ9iYM6kW1g38z1NozDw==
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

2026-09-17T11:38:07.769403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030400
observed 317b37f671cf99bec0e999983e26d832...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:07.751390ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030400/manifest.json
observed 7ec0e0ad29a11acc8972bc3f0384c5e7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:07.734130ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030400/publication.md
observed 2d248c4e585af4cee848b79907fcc545...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:07.716665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030400/publication.txt
observed d2671ef25d51f3c4ce8274f378f3b8da...
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.