OpenTechnical

OT-2026-000028158

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, common isolation valve, 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-2026-000028158) never changes.

Identity and time

Publication numberOT-2026-000028158 · never reused
Internal UUID01a0ae72-a520-7956-a5be-46dda41a12bc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028158
StatusPUBLIC

Content hashes

Canonical text35b062c78d5fdd70a796003b5650582f740dc7360c83a9f6c5038b45042b78cf
Markdown6e340be8819d781d3f7e20911c4729877c89b544abac7836913091d2721cf84a
PDF
Publication pagec7e6e8ba6b5d07a459d3850f76e76c7ff013519326cad95897b200380e20795d
Manifest1c570196512297f6b475652858dbe86f4f31f63ad44958f3afc1b553faa7f3c2

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
SignatureOpg/w3DOmG4ZVleHPfyoXDR1UeAnnxgIQByLXJ3SBcPmoGJhEQ6rvpCDaZRfMpgBJWOMoMFODSs+kW+0jxqbDQ==
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

2026-09-17T11:42:30.735128ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028158
observed c7e6e8ba6b5d07a459d3850f76e76c7f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:30.716108ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028158/manifest.json
observed 1c570196512297f6b475652858dbe86f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:30.699171ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028158/publication.md
observed 6e340be8819d781d3f7e20911c472987...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:30.682819ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028158/publication.txt
observed 35b062c78d5fdd70a796003b5650582f...
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.