OpenTechnical

OT-2026-000081059

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, single stage ejector, 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-2026-000081059) never changes.

Identity and time

Publication numberOT-2026-000081059 · never reused
Internal UUID01a0ae96-b976-7326-b8ed-67db96b86d20 · 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-2026-000081059
StatusPUBLIC

Content hashes

Canonical text749b243c581b6052d0fbc98d59b419394c28543211bee221981a3f0266784195
Markdown1b54b5b41418ec93a9a71a9f18bbb61ece0f44c6f7b126a4c77a9dfcf289dbfc
PDF
Publication page6de769419054c93960bb4c3034053dcb91b967786a5318db0ceae69ea3d4642a
Manifesta107efd37a4a85e3336f688f0c73b2d73d75969b5a00e55d9ad5c1d7d1bfd0d7

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
SignatureAfGZhxlQkhzNU2cE6ENJTWbpnjZQl4wkTMg5XQ3iiyMZjFc1+cTrKwDSXsN0ub77QF3dQHzrZ4wd88lqKm1ADQ==
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

2026-09-17T10:02:21.297982ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081059
observed 6de769419054c93960bb4c3034053dcb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:21.278998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081059/manifest.json
observed a107efd37a4a85e3336f688f0c73b2d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:21.259803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081059/publication.md
observed 1b54b5b41418ec93a9a71a9f18bbb61e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:21.240066ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081059/publication.txt
observed 749b243c581b6052d0fbc98d59b41939...
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.