OpenTechnical

OT-2026-000032221

Publication integrity record

Two cup vacuum gripper, two outlet manifold, pump fed, pulsed blow-off after 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-2026-000032221) never changes.

Identity and time

Publication numberOT-2026-000032221 · never reused
Internal UUID01a0ae74-f7a7-7a17-8428-3399c55de5ae · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:36.332587Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000032221
StatusPUBLIC

Content hashes

Canonical text9776a6492d477d6ca08469a5c4dc55f4fba1ad5e43c5a3fd3dd89e9fea6c9b40
Markdown562130237b13b1053a0cc0b4f6b298b2ff46aeeacfc536f579b7f624359a0a4e
PDF
Publication pagea7a8cd820f0967833df531bcb94fce47b6269157b1d2b9bb105032ee1dc3d6f4
Manifest83e87884bb7cd8ac7a7f08b5740d2e9c03cb86ea9771c9dcdda67fb0b63aa7cc

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
Signature0LeLkw5Yjqms9gupDiWKA/0FNwFz1fGowxET5DZCE0eK7VAtVhQWhSYQKK5rXRGcy+16fzDSLuzutxEvBDAZBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T11:34:34.294837ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032221
observed a7a8cd820f0967833df531bcb94fce47...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:34.277001ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032221/manifest.json
observed 83e87884bb7cd8ac7a7f08b5740d2e9c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:34.257818ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032221/publication.md
observed 562130237b13b1053a0cc0b4f6b298b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:34.236734ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032221/publication.txt
observed 9776a6492d477d6ca08469a5c4dc55f4...
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.