OpenTechnical

OT-2026-000028357

Publication integrity record

Four cup vacuum gripper, four outlet manifold, three stage ejector, manifold pressure sensor, 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-2026-000028357) never changes.

Identity and time

Publication numberOT-2026-000028357 · never reused
Internal UUID01a0ae72-e2f5-7376-ada4-371c08aaa799 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028357
StatusPUBLIC

Content hashes

Canonical textae77fe319bd3a44c9867c18b960eba6b7fd6ca75bd1326fed36e538f649e137c
Markdown3ab2b34f96293b93c5e5908c8dbd884018bdfb697e3fb186aa9d04d0ceea828c
PDF
Publication page66d707e1e2cdfa12a9bed2dea4a82bbeabee84ee05c3b43a975f2f8ccee46161
Manifestda6347b941a06a4a834c71b3d2c10d94c162b484cb61da888e8418aee3d1ccb9

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
SignatureAtWZQ42xZ5ET822YC/rrZy7K1mlNgoU0PBAK6N8jk+S9oMiW2+TAevyz/bFyUrl9QbFWz/zc8eeehGBiKE0VAA==
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

2026-09-17T11:40:22.117983ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028357
observed 66d707e1e2cdfa12a9bed2dea4a82bbe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:22.100691ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028357/manifest.json
observed da6347b941a06a4a834c71b3d2c10d94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:22.081748ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028357/publication.md
observed 3ab2b34f96293b93c5e5908c8dbd8840...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:22.063157ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028357/publication.txt
observed ae77fe319bd3a44c9867c18b960eba6b...
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.