OpenTechnical

OT-2026-000081117

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, plant vacuum fed, 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-2026-000081117) never changes.

Identity and time

Publication numberOT-2026-000081117 · never reused
Internal UUID01a0ae96-b977-7edf-8403-2f14ddc903fa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081117
StatusPUBLIC

Content hashes

Canonical text1e0562f6f71f25d81bdb705bc6e08905bb84db12ff2b7c897b1ad604020c319e
Markdown4c6e6f057e83cf322b9cd6afe0d6dc4856350a64286667040d83f4ec4877b6b8
PDF
Publication page5ceaac1f646f0d7395d803b98d6d271da47e4eae70f4462e48df8e3062089b53
Manifestfe1212e8284c1b6bf50f6314864836b079cb78b3280f5a2b8c35ddb47aa1c1e8

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
SignatureWDd9SWAYoChK/EP+TGIOUaYjZH5kYw7tTGz8zgXOAyq7GBb6GZnRJNqwOERp3dO5kwLpqDhsQLSyzsu59SuxCw==
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

2026-09-17T10:02:25.606451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081117
observed 5ceaac1f646f0d7395d803b98d6d271d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:25.587903ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081117/manifest.json
observed fe1212e8284c1b6bf50f6314864836b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:25.570602ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081117/publication.md
observed 4c6e6f057e83cf322b9cd6afe0d6dc48...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:25.552139ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081117/publication.txt
observed 1e0562f6f71f25d81bdb705bc6e08905...
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.