OpenTechnical

OT-2026-000087452

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three stage ejector, supply line pressure sensor, 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-2026-000087452) never changes.

Identity and time

Publication numberOT-2026-000087452 · never reused
Internal UUID01a0ae9a-cd50-72a7-a578-63bd6a9566bb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087452
StatusPUBLIC

Content hashes

Canonical text10774cb6e2b3070d83714da20a4fb0aee7a1d37088bc4bd89dca844425a712ea
Markdown572a951d7f4fced166bba63a4783ae19cfa653e605f9481807a689bee391f1be
PDF
Publication pagebfa913ff3ca557bbe5c2f58355ff73a79badf5a93f339229d2f37b051efff83b
Manifestdb657e99b6342cac8022402a1acff31d60f767ca473b300e0d6efbcc1311406c

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
SignatureePI97teWR1yut3amdAW4t91+UE9UZ5Osbr/8l+fYduoo4RVoPHYliXOMVuaXT5mwMkOvEcr59ylakUcrWWl1Bg==
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

2026-09-17T09:50:46.631927ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087452
observed bfa913ff3ca557bbe5c2f58355ff73a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:46.614542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087452/manifest.json
observed db657e99b6342cac8022402a1acff31d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:46.596725ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087452/publication.md
observed 572a951d7f4fced166bba63a4783ae19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:46.580171ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087452/publication.txt
observed 10774cb6e2b3070d83714da20a4fb0ae...
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.