OpenTechnical

OT-2026-000029535

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, pump fed, pulsed 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-2026-000029535) never changes.

Identity and time

Publication numberOT-2026-000029535 · never reused
Internal UUID01a0ae73-5e21-7d17-a774-ad54bf5627b3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029535
StatusPUBLIC

Content hashes

Canonical textaa2dffc32939f5e381eefe63dc39433d77821d0efe47a0d705e64eb4133ab7a2
Markdownc8f41fc9ef6e5c6f20fb1d3c98f658c67dfdd63fb6b51640904d90b070d65ae0
PDF
Publication page350b63405e292a72003f122e74b57b3d3d4ae4b28981ceb482686e388816ff4d
Manifest648654568f7bc509233a57e54c857d18eaa06767d2621e10b7b54115d7852578

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
Signature0zb4POyHRgBciZq4ZZ1DRKObXO2kK/T7QNrwyUIyw1Xqg6aHYZtKP1whVGBZI3AeFNyFkApzejqVOp74bnbiDA==
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

2026-09-17T11:39:11.365904ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029535
observed 350b63405e292a72003f122e74b57b3d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:11.349263ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029535/manifest.json
observed 648654568f7bc509233a57e54c857d18...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:11.333384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029535/publication.md
observed c8f41fc9ef6e5c6f20fb1d3c98f658c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:11.317096ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029535/publication.txt
observed aa2dffc32939f5e381eefe63dc39433d...
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.