OpenTechnical

OT-2026-000020875

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, two stage ejector, 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-2026-000020875) never changes.

Identity and time

Publication numberOT-2026-000020875 · never reused
Internal UUID01a0ae6f-65e3-740f-8e8c-fba1d415f519 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020875
StatusPUBLIC

Content hashes

Canonical text88e7cb93d733a3d5102f16c5338ec13aadb353c6e598741a3d980c95c2d2d043
Markdownd97429759a734c8421b02065c35657d50d5b7390e180eebc9813bc24eaddf323
PDF
Publication pagec8031b5d4b88d9a065bbeaa57faffbaab5294bf6f27f67d6f6ae31678be05755
Manifest96eb0c5dfb4606ee6f4287b2e941c3c8a045c9e28495580ba82b9fb20268a560

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
SignatureK7ix//T4/94GKIOmnnZuyfr6Uo3awmEWqYdKbfsoUt2B2j7Gym1A4dxGPU50VYlYnx0TVAtZzAHeOq6Z2TuSDw==
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

2026-09-17T11:55:58.976155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020875
observed c8031b5d4b88d9a065bbeaa57faffbaa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:58.958808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020875/manifest.json
observed 96eb0c5dfb4606ee6f4287b2e941c3c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:58.941216ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020875/publication.md
observed d97429759a734c8421b02065c35657d5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:58.925292ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020875/publication.txt
observed 88e7cb93d733a3d5102f16c5338ec13a...
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.