OpenTechnical

OT-2026-000090898

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, two stage ejector, pressure sensor per zone, sustained blow-off before set-down

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-2026-000090898) never changes.

Identity and time

Publication numberOT-2026-000090898 · never reused
Internal UUID01a0ae9c-c011-742f-9793-ef274a256d81 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090898
StatusPUBLIC

Content hashes

Canonical textb5f8328c7b976ebf79e418776db1a28aa5ce294ef7688b254dc382973494060e
Markdown15d1925f1b5399bdac6bcb26bb39a40c6d0642b3293fb9290c0c41aae1ecc2f3
PDF
Publication page73538f659f2f0369519dc958e3fec61230b4f5bfc624c9457f2fbb8c3db936c0
Manifest1dbb693a88d9a435a989bf16b3bd8ca630b03d8ac7c9b3834944daf48d9361d2

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
SignatureMPQFbSOTx+soE8kpPwjMQcBIjvxPlU5537yxasGJXixcZL62OoG8BhAqAwBWyYcQV3KMD3PcgYyzbwzS0ehnAw==
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

2026-09-17T09:44:06.130435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090898
observed 73538f659f2f0369519dc958e3fec612...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:06.113520ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090898/manifest.json
observed 1dbb693a88d9a435a989bf16b3bd8ca6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:06.096904ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090898/publication.md
observed 15d1925f1b5399bdac6bcb26bb39a40c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:06.079606ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090898/publication.txt
observed b5f8328c7b976ebf79e418776db1a28a...
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.