OpenTechnical

OT-2026-000087701

Publication integrity record

Four bellows cup vacuum gripper, four zone face, pump fed, supply line pressure sensor, 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-2026-000087701) never changes.

Identity and time

Publication numberOT-2026-000087701 · never reused
Internal UUID01a0ae9a-cd54-732b-848c-4b278118f4f4 · 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-2026-000087701
StatusPUBLIC

Content hashes

Canonical text35250300c30ec22c142a30ddd28f7fe4525f63d85be5cd780035d282881e16cd
Markdownfc6ae6d7fac20a2a58739f39f56a57f28df29c4af737a7a1f038f37ed360048b
PDF
Publication page17c3a3a4aac3f6e8cf9f951080e4ed996e3a71beaf4e4cd61b42b1433deb8537
Manifestf1501be7f0a8788c888751c16364a13bfc1d0b5aa6a0d3055023beab5cb69add

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
SignatureNAvVj75SVTz+i+Y23yk8Obcnsp+WZmNb7/sX0jo/csiRqWfs5UXQh0MgJG91+vr38rbQWtuN2VWKtSHZ6goWAg==
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

2026-09-17T09:51:09.083868ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087701
observed 17c3a3a4aac3f6e8cf9f951080e4ed99...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:09.067406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087701/manifest.json
observed f1501be7f0a8788c888751c16364a13b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:09.051654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087701/publication.md
observed fc6ae6d7fac20a2a58739f39f56a57f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:09.036467ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087701/publication.txt
observed 35250300c30ec22c142a30ddd28f7fe4...
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.