OpenTechnical

OT-2026-000058552

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, sustained blow-off 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-2026-000058552) never changes.

Identity and time

Publication numberOT-2026-000058552 · never reused
Internal UUID01a0ae88-f39c-7faf-b8cc-c9da434c6b9b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:43:25.998432Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000058552
StatusPUBLIC

Content hashes

Canonical text01f68ff4832261f73d41b828de9a1e3f52aea7e96ec09ba43e75e327d9a1551e
Markdown57837336984757566e1b63e26442b4d69d798174c402694cec4a1a8d7c841079
PDF
Publication page05e08258fdf804c6a88ec35f3804170131c0b85d11ff3bb1a2bc04ba93690e5a
Manifestd9d2223e83ac20758bff7eb8b20dac085e270804c34649f987616abce79155ff

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
SignatureMoJU1jdNjNKdWCzxGeqAsRaNfpeGeq/9p+FQnmKOGlciOUyWtNNAexNjuwGST2BfoswXCgmK/QwTUlLNJDpCCg==
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...

Independent retrieval

2026-09-17T10:47:01.912519ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058552
observed 05e08258fdf804c6a88ec35f38041701...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:01.896363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058552/manifest.json
observed d9d2223e83ac20758bff7eb8b20dac08...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:01.878276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058552/publication.md
observed 57837336984757566e1b63e26442b4d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:01.844722ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058552/publication.txt
observed 01f68ff4832261f73d41b828de9a1e3f...
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.