OpenTechnical

OT-2026-000089157

Publication integrity record

Foam pad vacuum gripper, three zone face, six outlet manifold, plant vacuum fed, supply line 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-2026-000089157) never changes.

Identity and time

Publication numberOT-2026-000089157 · never reused
Internal UUID01a0ae9b-db00-7775-90fc-482e03252738 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089157
StatusPUBLIC

Content hashes

Canonical text7eeb0b0f206930d81f2fb93af7d46b5eb44c6165a320e5cf3c2315882d5f9b2d
Markdown29711398b08d1e83afeff2d9fb70ff436372e7428a571275745d23b05d1bae67
PDF
Publication pageea8f73d7d4161824fc864dce386762bb21397fbb3f8cdbd12c207f4e93162b95
Manifest1a31fb2bc7fce180ee106ee380bcb21ee46091099157f92350aa9c833c0f4bc2

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
SignatureWfPVs54XF4tTqysemFO6pj35dL5yUhV7MbLfpb/7JIeQ3NC44BVi7R/q3MHsbP8S4t84LlfbJkFETyS3sICqBw==
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

2026-09-17T09:47:04.913523ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089157
observed ea8f73d7d4161824fc864dce386762bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:04.896266ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089157/manifest.json
observed 1a31fb2bc7fce180ee106ee380bcb21e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:04.879692ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089157/publication.md
observed 29711398b08d1e83afeff2d9fb70ff43...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:04.862889ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089157/publication.txt
observed 7eeb0b0f206930d81f2fb93af7d46b5e...
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.