OpenTechnical

OT-2026-000029717

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, 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-2026-000029717) never changes.

Identity and time

Publication numberOT-2026-000029717 · never reused
Internal UUID01a0ae73-5e23-76fa-850e-94a85e712cec · 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-2026-000029717
StatusPUBLIC

Content hashes

Canonical text88a38c9e84fdde1afb87d09de226f7d31f8c07f18911f41b6f191a00ae60e376
Markdown81fef3ab54db526899f6380ba75e7959e7fa22c72feecb1380c2d5f9f8850208
PDF
Publication page60e9cf6406bd17434a31f76ed0c485d7f8dc44ff2faa1e6407c6aeecb0e0d665
Manifest6824e6f4a7471e5c3ac66d124402da2b12789b96dc8a1169865165cbfb5a9230

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
SignatureWWtq1Cfzoa2zKOtiXO5Y0vLALyp2rzXrcKLksg+uSkCihIn+oEdADctYXR4VTdMOJRqvD7qPN0yfT9kzIzD2DA==
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

2026-09-17T11:39:26.857155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029717
observed 60e9cf6406bd17434a31f76ed0c485d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:26.839498ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029717/manifest.json
observed 6824e6f4a7471e5c3ac66d124402da2b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:26.812098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029717/publication.md
observed 81fef3ab54db526899f6380ba75e7959...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:26.791954ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029717/publication.txt
observed 88a38c9e84fdde1afb87d09de226f7d3...
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.