OpenTechnical

OT-2026-000089747

Publication integrity record

Three cup vacuum gripper, three zone face, four outlet manifold, pump fed, manifold pressure sensor, 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-2026-000089747) never changes.

Identity and time

Publication numberOT-2026-000089747 · never reused
Internal UUID01a0ae9c-1a22-72b7-bfe9-f6541ea7b311 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:21.039513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089747
StatusPUBLIC

Content hashes

Canonical text347fc4c7dc51fe20cde1e35c87bd05d4646bfaf196f50a77a422ecb7da632755
Markdown9a45b039eb4ad90a250741954b872674aa28470e887d22dfd5d8bd745377e950
PDF
Publication pagef1f4075acb59c909dd045f16e6f93a6dd74f7a7a63bb5130a1193908ee7d3487
Manifestb7b681e7f3bde1ff4d97f3766d11dc3da6ead095493170394511e0ea0ab48f0b

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/5EAC/W+xMmu2Qs0VyNgnikxbtmq2MZ9PEODDsAgs2tD1fS5X+OQ1Hs2TfL3SSxiA8g0gSoT5qsHbn4HZoEiDg==
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

2026-09-17T09:46:49.783798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089747
observed f1f4075acb59c909dd045f16e6f93a6d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:49.764940ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089747/manifest.json
observed b7b681e7f3bde1ff4d97f3766d11dc3d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:49.745440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089747/publication.md
observed 9a45b039eb4ad90a250741954b872674...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:49.727198ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089747/publication.txt
observed 347fc4c7dc51fe20cde1e35c87bd05d4...
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.