OpenTechnical

OT-2026-000058029

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, supply line 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-2026-000058029) never changes.

Identity and time

Publication numberOT-2026-000058029 · never reused
Internal UUID01a0ae88-6eda-763b-8a74-0ae2ee6f4836 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000058029
StatusPUBLIC

Content hashes

Canonical textc82bd799e4e9462834b4ee6384cc8a739e27b94cd7968f00cf5f5372a2930082
Markdown2d6f5caea3b1840b338b1e9d640dc3e2b9bdab81aaf10862d82eedaafd5cc750
PDF
Publication page9b00cc4a1c8a9f875da13b603188f6d898f215d6da4e0299b4a32ae171a1616f
Manifest6073742b490d91602e2f7e13748f147a6299cea9e213a89f6693270871ec02b0

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
Signature916Pnw7Wc7oidid5IYf5I1LZFB1gEryQc61iXZyeaNSXf7GpZbYHgy7QWIQTB2RuVoC9YrocDSBfSnQpFXI5Ag==
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

2026-09-17T10:47:40.380708ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058029
observed 9b00cc4a1c8a9f875da13b603188f6d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:40.360866ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058029/manifest.json
observed 6073742b490d91602e2f7e13748f147a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:40.341729ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058029/publication.md
observed 2d6f5caea3b1840b338b1e9d640dc3e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:40.322468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058029/publication.txt
observed c82bd799e4e9462834b4ee6384cc8a73...
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.