OpenTechnical

OT-2026-000086147

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, 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-2026-000086147) never changes.

Identity and time

Publication numberOT-2026-000086147 · never reused
Internal UUID01a0ae99-e82c-7612-9d31-b30d69d9a04d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:57.178584Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086147
StatusPUBLIC

Content hashes

Canonical text7d4d5e84cf382d9f510b4f48779e0ed50825c2e670f2423083655b50b38b7e15
Markdown94ea86f1bbc7e74f51e92724fc2c64b3cb9a73f6ca74a1133df3a5e96ec3ecc0
PDF
Publication page99a7f1bb630a40ba63ed914eedd63c84ea5b52e5564945154d5f8fb14595e450
Manifest3207135fa6e744eab5425e8cf2fe15b0db91aa19da826b1c65f6edd96a5ece6f

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
SignatureaF0wNGwrSWZszv2UQaENDmRO/lq1C/zJBMkkK11xy31h8t+I+5HSICCVorcfwVg6zRkqPoE9OqdrzsY/dXx6DQ==
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

2026-09-17T09:53:48.865346ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086147
observed 99a7f1bb630a40ba63ed914eedd63c84...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:48.845296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086147/manifest.json
observed 3207135fa6e744eab5425e8cf2fe15b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:48.825751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086147/publication.md
observed 94ea86f1bbc7e74f51e92724fc2c64b3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:48.807772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086147/publication.txt
observed 7d4d5e84cf382d9f510b4f48779e0ed5...
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.