OpenTechnical

OT-2026-000029215

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, two stage ejector, 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-2026-000029215) never changes.

Identity and time

Publication numberOT-2026-000029215 · never reused
Internal UUID01a0ae73-2aa0-7078-9ff2-1941d3004fa1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029215
StatusPUBLIC

Content hashes

Canonical text3376fc3806afc21fcc1d4ba2f38fc3dfdf76cb003b85f6656db66728d6439056
Markdown67ab1ce5c85e0572b4c81579068dd777f37e017621c52017020a230b13f8a740
PDF
Publication page39fe8eb29b2114510e84effeff4db24293ee54038ae6dda3f5aac6a4d1837c43
Manifeste54ec9245bb8804f3191b662233be9b54d3186f5542aaf2303da03801b1caab6

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
SignatureeI3N6t99vDbkyecXbB2ZpytZE2beTSnr12cm+Cz/Pvv5ekXyHKuzA08rCq2sJntKd0Ll54BO/xL2TAiNk7d0DQ==
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

2026-09-17T11:39:50.046149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029215
observed 39fe8eb29b2114510e84effeff4db242...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:50.028953ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029215/manifest.json
observed e54ec9245bb8804f3191b662233be9b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:50.010907ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029215/publication.md
observed 67ab1ce5c85e0572b4c81579068dd777...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:49.993601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029215/publication.txt
observed 3376fc3806afc21fcc1d4ba2f38fc3df...
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.