OpenTechnical

OT-2026-000090986

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, two stage ejector, pressure sensor per zone, 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-2026-000090986) never changes.

Identity and time

Publication numberOT-2026-000090986 · never reused
Internal UUID01a0ae9c-c011-788e-8bb0-93f15b65dfa9 · 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-2026-000090986
StatusPUBLIC

Content hashes

Canonical textcf5e8636c52737fef3087d6e4c61b19b6d6afb0ce1121e183a074c27d7e1e564
Markdowndaa55a7eef1b97994ca5ea43a8d2994bf88983c2604fefd02eaabdc7d6232d83
PDF
Publication pagec9c68975e3849c81b3bdbded687150f0675de346df1093e1f7adf14b2e0b6260
Manifest3cc71905809a83437773b88059de441f4d06c45e19ed68b39ea57975287c7175

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
SignatureFpuEyQqOjLB+RfT024Rn/8Ju9Q5g3PgBatBS0TU0QCxO0ALe26nj2rPmfDbD3BYZLJ0nI1qSfGjEVhuWkCVBDQ==
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

2026-09-17T09:44:12.910755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090986
observed c9c68975e3849c81b3bdbded687150f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:12.892980ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090986/manifest.json
observed 3cc71905809a83437773b88059de441f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:12.875332ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090986/publication.md
observed daa55a7eef1b97994ca5ea43a8d2994b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:12.857302ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090986/publication.txt
observed cf5e8636c52737fef3087d6e4c61b19b...
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.