OpenTechnical

OT-2026-000052141

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, vented 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-2026-000052141) never changes.

Identity and time

Publication numberOT-2026-000052141 · never reused
Internal UUID01a0ae83-e78f-78bb-8024-563fe3cff5dc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:37:55.233643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000052141
StatusPUBLIC

Content hashes

Canonical text7e6ab59739d6bd40da01b1e37d496f090bbeb534979c53028fa6a4ff01464fc9
Markdown32b5410f537ef0268a35fc21dbbc1d9a71a233e31c1605daac2601a792a4bdbd
PDF
Publication page046be416b1cdff60216419ca6ecfbcf7b41310e1cc47db439dd9366827eaf256
Manifest1994b203a630f230550d36baf6f994e16d8ac2a0a21ba48f9b8b41f4eecd95d7

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
SignatureHt83DhANGvazbr29Qw5PPtXDtDxCVoYXxRto8dKYt0NJ+sovd/6wVnrz9J++iSlI5K4m/Rh1Q/hyzkT08ItNDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:57:41.566861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052141
observed 046be416b1cdff60216419ca6ecfbcf7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:41.548621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052141/manifest.json
observed 1994b203a630f230550d36baf6f994e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:41.530156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052141/publication.md
observed 32b5410f537ef0268a35fc21dbbc1d9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:41.512543ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052141/publication.txt
observed 7e6ab59739d6bd40da01b1e37d496f09...
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.