OpenTechnical

OT-2026-000015071

Publication integrity record

Four cup vacuum gripper, four 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-2026-000015071) never changes.

Identity and time

Publication numberOT-2026-000015071 · never reused
Internal UUID01a0ae6d-d096-75c8-ae86-649c19544e6b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:47.560717Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015071
StatusPUBLIC

Content hashes

Canonical text861c0fc9833aa924d089711bd444df3922e2a9eabebf7aedb01e8d5fea0e2038
Markdownd1edff4ae011c9e40600b66a26a903d5217bdc053a9b62e4bed56cdaf67ddcf1
PDF
Publication page3816b1734be0aabf5d374f71f86da7ca5a8088519d1d64893cabb639888368da
Manifest894386ea247ab00c274a6482f8b55cf2619076be1de1e339005a9fc898fdc8af

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
Signature9ZbuvdjMePAtwMAPNYtVEwaE5h2XGWQ8OkkNezZxt+LKQ3P0U6k6BzTxKZMpCUsgXOfbHzsq4A1OXFF14F4VCg==
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

2026-09-17T12:07:07.101221ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015071
observed 3816b1734be0aabf5d374f71f86da7ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:07:07.081841ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015071/manifest.json
observed 894386ea247ab00c274a6482f8b55cf2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:07:07.062636ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015071/publication.md
observed d1edff4ae011c9e40600b66a26a903d5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:07:07.042107ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015071/publication.txt
observed 861c0fc9833aa924d089711bd444df39...
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.