OpenTechnical

OT-2026-000091477

Publication integrity record

Foam pad vacuum gripper, three zone face, three outlet manifold, pump fed, pressure sensor per zone, 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-2026-000091477) never changes.

Identity and time

Publication numberOT-2026-000091477 · never reused
Internal UUID01a0ae9c-f16d-791b-948e-6b1ab55897cc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091477
StatusPUBLIC

Content hashes

Canonical text183675387977cedccf3e8cffebcf152d4d12af14e1a51a9057dcad76632c6738
Markdown33638e7f4b2b3597b264330ea1062851da97108a5d5e900be27bf7dd805dd1e3
PDF
Publication page8f88a727a91d077c5bbb25bdc052458fb17127d4f171b81f212030780f9720af
Manifest3dd1b25fc0bc5e6f8276c59bbcb494bdd3d7870183b1b28de00e5353efcdcd99

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
Signaturewy5GSaivsr2Smf7OXgEMG9BoztcZeDzottyWj6UVtFiJeAc/5oPVKSsfVyQkM/bBKD/xr1AYAiO8Y7ZyPE56BA==
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

2026-09-17T09:43:43.743839ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091477
observed 8f88a727a91d077c5bbb25bdc052458f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:43.726032ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091477/manifest.json
observed 3dd1b25fc0bc5e6f8276c59bbcb494bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:43.708597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091477/publication.md
observed 33638e7f4b2b3597b264330ea1062851...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:43.690110ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091477/publication.txt
observed 183675387977cedccf3e8cffebcf152d...
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.