OpenTechnical

OT-2026-000079709

Publication integrity record

Foam pad vacuum gripper, three zone face, pump fed, 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-2026-000079709) never changes.

Identity and time

Publication numberOT-2026-000079709 · never reused
Internal UUID01a0ae96-4375-7ae6-a64c-e25a7d6157b4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079709
StatusPUBLIC

Content hashes

Canonical text0932d5ea4265eaa4812c3446f23bc3c6238d02eab040c335262470e4157e4026
Markdown339bc62102a01b7380cbb578db0c6fa65877a9690621c07c3d34c250549894d7
PDF
Publication page02002bc8f9ebf4c5ae258c171fe2111dc4980dca67867c96c32a1dc76360c655
Manifest7344bff88d51b1b60f75284e1608d2df8458e220c3007df8747ae6e3e3823f2b

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
Signature+RcEnfRHt3Ht2RxGzHeQI8mgcOkiMEHoBrY9/kMZ1m/4Nxd9w7dPJv7mfHozmBrTxRt0IuzQ/HdPlL78Zf1XCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:03:34.097019ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079709
observed 02002bc8f9ebf4c5ae258c171fe2111d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:34.073410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079709/manifest.json
observed 7344bff88d51b1b60f75284e1608d2df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:33.934863ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079709/publication.md
observed 339bc62102a01b7380cbb578db0c6fa6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:29.054626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079709/publication.txt
observed 0932d5ea4265eaa4812c3446f23bc3c6...
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.