OpenTechnical

OT-2026-000054649

Publication integrity record

Two cup vacuum gripper, two outlet manifold, pump fed, manifold pressure sensor, vented 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-2026-000054649) never changes.

Identity and time

Publication numberOT-2026-000054649 · never reused
Internal UUID01a0ae86-1284-7f9e-940b-54083c2d3ad3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:17.489937Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000054649
StatusPUBLIC

Content hashes

Canonical text20ed015e9d7c1ff9c22e41df340221225c5ee5ab20deea3d201b8aec6c557788
Markdownee674c3b0721b0b89aa9163c37daee317e1dc7135e4f9579bc13b639c83a6af7
PDF
Publication pageec5dfa02c74515945ed5aa71e8867d7b817d88eace2679ac3c62931b1fd70a17
Manifestf4063fe8fef4e20269d4c13b219b897af2c99368f6057a2b8e7c693fc906099f

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
SignatureJVkMhF/ug04Dlms/GQUlLYYtp00JSPghzsdbvMRuhH+99VGXudadlTrvV78g2etnf8ANM6n+2LHNSxR6mLWOCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:53:43.025366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054649
observed ec5dfa02c74515945ed5aa71e8867d7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:43.007835ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054649/manifest.json
observed f4063fe8fef4e20269d4c13b219b897a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:42.992057ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054649/publication.md
observed ee674c3b0721b0b89aa9163c37daee31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:42.976457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054649/publication.txt
observed 20ed015e9d7c1ff9c22e41df34022122...
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.