OpenTechnical

OT-2026-000064967

Publication integrity record

Four cup vacuum gripper, four zone face, 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-2026-000064967) never changes.

Identity and time

Publication numberOT-2026-000064967 · never reused
Internal UUID01a0ae8d-debe-7d5b-baf1-48af12532acf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:48.495161Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000064967
StatusPUBLIC

Content hashes

Canonical text7157f7eae9bb5cc4a417dfa64b4281f5ad49fac01dcd6ea8fb4a98be94791160
Markdownd7e3c2e9ac7c78f911b5d86b2e001b64f039b10cfc11f74fb343b7c443da0645
PDF
Publication page33f87d2678e306cd8f92af1aaff5039faf6413bb511ed1e01563b82ec1a40506
Manifest5828eb15149e349dffb404a6982fc197b7387478dd855c4a8544a7cb951b2e92

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
Signature55Go5BXU1BZ2QXQjw8l6bX/KniiXhaTtX9rg88qsha948PRp/EYzeGiZZ9Y7X0wvdE8M7+HCuiXGakjLcIOLDA==
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

2026-09-17T10:35:54.735873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064967
observed 33f87d2678e306cd8f92af1aaff5039f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:54.718651ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064967/manifest.json
observed 5828eb15149e349dffb404a6982fc197...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:54.699714ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064967/publication.md
observed d7e3c2e9ac7c78f911b5d86b2e001b64...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:54.683266ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064967/publication.txt
observed 7157f7eae9bb5cc4a417dfa64b4281f5...
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.