OpenTechnical

OT-2026-000072828

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, plant vacuum 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-2026-000072828) never changes.

Identity and time

Publication numberOT-2026-000072828 · never reused
Internal UUID01a0ae92-89da-73bc-abda-3d3bf7f3e09d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072828
StatusPUBLIC

Content hashes

Canonical text8c4b0890a6ef2571d50c5612b18d8d99f17c5e3dac20d8a9e40d6799c00b292d
Markdown14403c385518da39570c077246eef07da805e220c9049f1b661822ed9366fc4b
PDF
Publication pagea2d89c080a3ef1bb81569217922065409206d8b67f5cd64d40df98e61067858a
Manifest9d6e127f949be89f84d5b69027595ea240c60ead221070d3549452599585bed6

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
SignaturemkdqLVkZKcJujBZL+Ud6OxwMheXDABh/aHLGSgyMmjqmvtTfhoVqvUgJGVCxHXomIGyUInU3jyhdwzsvvKWtBg==
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

2026-09-17T10:22:44.918464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072828
observed a2d89c080a3ef1bb8156921792206540...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:44.900764ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072828/manifest.json
observed 9d6e127f949be89f84d5b69027595ea2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:44.880992ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072828/publication.md
observed 14403c385518da39570c077246eef07d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:44.862058ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072828/publication.txt
observed 8c4b0890a6ef2571d50c5612b18d8d99...
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.