OpenTechnical

OT-2026-000047727

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, pulsed 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-2026-000047727) never changes.

Identity and time

Publication numberOT-2026-000047727 · never reused
Internal UUID01a0ae7f-c41f-7444-83c1-52e94528d395 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047727
StatusPUBLIC

Content hashes

Canonical textf50ea9473960a399ccacec6348e5a93206d083016ca3a292e65fdab4b70ea629
Markdown8196f5e8d38cd6d2cff1f94cef20c6f566ebf2cc82a5b7f6376f7c482c168ccb
PDF
Publication page39f0dbf853e23cf864c4d0a454a6f39718a5422e025fa60b4620d3181b9dd4fc
Manifest57d63644cdf9de1e9d19bc96de0eda85ba14dae63082a6d727f435d8626ca637

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
Signaturek0+R7uu9S8md8LCU2jHFEeWxKir53m4siygjzoSk2CUPyAabE7OpJlYaUOmFHkqmw0QxwrNIvimE/reAs00FAA==
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

2026-09-17T11:05:35.927091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047727
observed 39f0dbf853e23cf864c4d0a454a6f397...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:35.907071ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047727/manifest.json
observed 57d63644cdf9de1e9d19bc96de0eda85...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:35.885711ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047727/publication.md
observed 8196f5e8d38cd6d2cff1f94cef20c6f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:35.866162ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047727/publication.txt
observed f50ea9473960a399ccacec6348e5a932...
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.