OpenTechnical

OT-2026-000068516

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, pressure sensor per zone, pulsed 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-2026-000068516) never changes.

Identity and time

Publication numberOT-2026-000068516 · never reused
Internal UUID01a0ae90-2482-79ab-8ee9-24eaf9246ca0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:17.262143Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000068516
StatusPUBLIC

Content hashes

Canonical text68fae4ed0dd7771f6d4d6e77dbb231367fb52fc790fbf4a45d53bb4a257ce91a
Markdowncf0a927fdd72baec7c72129e944ee5eef5ac07e60afdf913c74d847374773b08
PDF
Publication page2e95efe4fe7892bd2f400ed210f10a680df2590eb1ca4038f29f7dd9a5067ea9
Manifest526c777094f0e7a3ae5b001785b389d27d0857ffe670e3c171e59a9289702949

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
SignatureAniJPqRGp4Ur9nMIDkXMwaCjmAecnZ7DZUBrLI6LV6q7xgMbYlVbDNx/eV8F0g9ytMba53jBT6TglfnZfWuSBw==
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

2026-09-17T10:29:40.482799ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068516
observed 2e95efe4fe7892bd2f400ed210f10a68...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:40.466793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068516/manifest.json
observed 526c777094f0e7a3ae5b001785b389d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:40.447827ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068516/publication.md
observed cf0a927fdd72baec7c72129e944ee5ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:40.430855ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068516/publication.txt
observed 68fae4ed0dd7771f6d4d6e77dbb23136...
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.