OpenTechnical

OT-2026-000031852

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, sustained 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-2026-000031852) never changes.

Identity and time

Publication numberOT-2026-000031852 · never reused
Internal UUID01a0ae74-bad1-7ea6-a209-3d0dc944f294 · 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-2026-000031852
StatusPUBLIC

Content hashes

Canonical text98cbde6cc342de2a0e34a24e0e191c9c824fa89c4114c002b827d9c1a68ceff2
Markdown3ff8948254b913437e717a3ba88bdf2163623f786929cb9c5a13f96b160f5527
PDF
Publication page3edf4f0f87453100a08df51ff021bca442c0826f607d2979dc96e4172fc10194
Manifest8b2dc4a7f67455a82e61ac1f55fe16ef4e5ac403758148b1a12f3e00e034a94d

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
SignatureAxjhduhRyJtToi9s+VYnBrDEIOGEFEqGqft2kxxOqo7okLADZ+kMUiAFIcV37NfcL1A7ms2w5yz4BwhX7bHdBQ==
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

2026-09-17T11:35:06.379487ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031852
observed 3edf4f0f87453100a08df51ff021bca4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:06.361892ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031852/manifest.json
observed 8b2dc4a7f67455a82e61ac1f55fe16ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:06.342932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031852/publication.md
observed 3ff8948254b913437e717a3ba88bdf21...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:06.318491ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031852/publication.txt
observed 98cbde6cc342de2a0e34a24e0e191c9c...
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.