OpenTechnical

OT-2026-000029489

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump 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-2026-000029489) never changes.

Identity and time

Publication numberOT-2026-000029489 · never reused
Internal UUID01a0ae73-5e21-74ed-9b0d-d5f585656075 · 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-2026-000029489
StatusPUBLIC

Content hashes

Canonical textf56ba57c24905b6458ec6d73501df41651a7f1dd08e8c35edbc9bc3b2798f5c6
Markdownedc0f4edabf0ab4dc31066e05ad7c0aad8c8d31071ac09bbe6b57bfe692acfb4
PDF
Publication page4fe30d03a9e7796297fab27d2a0cf7d6c29be2bbe59859979d54d0aad8a56e59
Manifest2f688f2929140041ef52921e7161a03c02f340c881381ca6712d32308409e262

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
SignaturemkmbgQndUIoV1CNxdC44m+hJWb/0ZQ4CmMBWd8YD/I0LZo0R7kjKEdseVrNAlaUkyuY7Jp0JmzXgueo915gTCQ==
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

2026-09-17T11:39:07.104442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029489
observed 4fe30d03a9e7796297fab27d2a0cf7d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:07.087254ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029489/manifest.json
observed 2f688f2929140041ef52921e7161a03c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:07.068709ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029489/publication.md
observed edc0f4edabf0ab4dc31066e05ad7c0aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:07.050671ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029489/publication.txt
observed f56ba57c24905b6458ec6d73501df416...
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.