OpenTechnical

OT-2026-000031769

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, pulsed blow-off after 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-2026-000031769) never changes.

Identity and time

Publication numberOT-2026-000031769 · never reused
Internal UUID01a0ae74-bad0-74f9-81ab-b0ae7a42134f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031769
StatusPUBLIC

Content hashes

Canonical text27624380b033e5a63dac3b9b0108c3e2b0cf4e2994d66102d8054925918e9b30
Markdownaa4d0afa9b73f790e97a1b03f4208bb8c6b51f0361a5a00ba0bb57eb90a8c063
PDF
Publication page735a03c2ae3b684b174c9a10d79b83305c761b82683bb1c7f4a97d1cee1cdc2c
Manifest1a106a7c848b7e56df2aff71ea29cf4c07c024234a24faedbc132f1238361dbb

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
SignatureEk8eBVe/7RkdwqUkDEYy+yxBuVNiQoeVrayRfDiq/t7fNYpb7uSnvW22q1pEbMvaMmhjfSTGoLBt6hImv88mBg==
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

2026-09-17T11:34:53.641039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031769
observed 735a03c2ae3b684b174c9a10d79b8330...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:53.622975ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031769/manifest.json
observed 1a106a7c848b7e56df2aff71ea29cf4c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:53.604300ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031769/publication.md
observed aa4d0afa9b73f790e97a1b03f4208bb8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:53.585784ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031769/publication.txt
observed 27624380b033e5a63dac3b9b0108c3e2...
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.