OpenTechnical

OT-2026-000012801

Publication integrity record

Single cup vacuum gripper, 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-2026-000012801) never changes.

Identity and time

Publication numberOT-2026-000012801 · never reused
Internal UUID01a0ae6d-5563-73f2-9850-83bbba7c62fe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012801
StatusPUBLIC

Content hashes

Canonical text16b595923fea4c22ad6d01f74fd4b8fe8458f60ae2f6362697caa84d907c078e
Markdown44979e956121a9e2e52d1f35ee3314f3db1115cde79f7c83ae3732a1dce15344
PDF
Publication page5175824a68992ca98ff878803af9968361451b5f610c26d87861d4c5c34ac83c
Manifeste8f1a47bd38771a13cfff4ef74565c661db78abc0411911b0ed8612ea7e71ae9

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
SignatureNJxGy5GfjlXRTJl/NgKiLL8oaUbB0THWe6B/MnAUMoEbujasdH/n1DEHqygdHZnCC4+qIQMqfFk42un8q5plAw==
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

2026-09-17T12:10:31.721888ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012801
observed 5175824a68992ca98ff878803af99683...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:31.701175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012801/manifest.json
observed e8f1a47bd38771a13cfff4ef74565c66...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:31.679852ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012801/publication.md
observed 44979e956121a9e2e52d1f35ee3314f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:31.659375ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012801/publication.txt
observed 16b595923fea4c22ad6d01f74fd4b8fe...
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.