OpenTechnical

OT-2026-000068574

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, pump fed, manifold pressure sensor, vented after 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-2026-000068574) never changes.

Identity and time

Publication numberOT-2026-000068574 · never reused
Internal UUID01a0ae90-2482-79b0-95b3-ce60aa3e0194 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:17.262143Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000068574
StatusPUBLIC

Content hashes

Canonical text7cb1d2f5fbcbcf76d800d078d8d0f6d7f17e71fd200215bf7329512963d3ca38
Markdown3317fcdeb8d2c8dcc1e9b7a647bbc74626178305ec792eb499581a6a646736cc
PDF
Publication page7da2952a8833dc54667b31a07eaace876cdc3368cb61dfa6d4c158ec3830b0a3
Manifest7c4276de98397758d4f99657ed0c572c5b7011c13428399f7f1060ce728e8069

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
SignaturebN1fLZTAKzNtYdUvl4EqgzaDUJSjyAZT64nAIGWv6sS/UnVoWmdgCaD/nwehdWFKZsunqbfs9tQBx1my0feDBw==
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

2026-09-17T10:29:44.822171ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068574
observed 7da2952a8833dc54667b31a07eaace87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:44.805283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068574/manifest.json
observed 7c4276de98397758d4f99657ed0c572c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:44.786885ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068574/publication.md
observed 3317fcdeb8d2c8dcc1e9b7a647bbc746...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:44.769708ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068574/publication.txt
observed 7cb1d2f5fbcbcf76d800d078d8d0f6d7...
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.