OpenTechnical

OT-2026-000082938

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, vented after 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-2026-000082938) never changes.

Identity and time

Publication numberOT-2026-000082938 · never reused
Internal UUID01a0ae97-8cca-7d84-83ba-2053dd367e15 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:22.827170Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000082938
StatusPUBLIC

Content hashes

Canonical text22d1f4f4ef4cd4a016a068739af18cfedc731a3f7e360b54e2c0fbb1463e0e97
Markdowna463939e391efcced9725d5b111921d67e8aa5c2fb24169045e123a5f6fa8b71
PDF
Publication page0bb85ce264cfc1ec67c4bae0962f92965dbe003728eb0500bc1adb17ac3341c2
Manifestd8fd8829feea138b1bfed2cea8f05eaa507d2f8f84806d2bf196c3358b66d58f

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
Signaturedw2q3ms1yh4tt5mIofXSPK2MUXNBwS0Gd6wJ42PnGzlfgwloOD/ON9szrAOqnBjPgFRf42bgSYwbZzybcULeAA==
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

2026-09-17T09:58:37.963993ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082938
observed 0bb85ce264cfc1ec67c4bae0962f9296...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:37.946145ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082938/manifest.json
observed d8fd8829feea138b1bfed2cea8f05eaa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:37.928167ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082938/publication.md
observed a463939e391efcced9725d5b111921d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:37.910459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082938/publication.txt
observed 22d1f4f4ef4cd4a016a068739af18cfe...
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.