OpenTechnical

OT-2026-000075636

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, 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-2026-000075636) never changes.

Identity and time

Publication numberOT-2026-000075636 · never reused
Internal UUID01a0ae94-29fd-704e-924b-172c4fc830bf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075636
StatusPUBLIC

Content hashes

Canonical textb20f6410a0b6f187b5b702336809eb9ab342c4cd6b2e716ba8ff3c70a6facfc8
Markdown2cdd9b30c0b7babeba7dbaf35afee766bcf34e89cc52af128139283f2fbd5d1d
PDF
Publication page688bc72fcf2716d4fd4b249f5dfc937b0256239cd14b70593ee2e3c851312d1b
Manifest2a9047a2a6e48142271f8ee741e09d2da061bc2075b20ce289b8039b69882ba2

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
Signaturew8LQh3OjHTQUtY/H/q5gMStXKMGg4D1lR229uJysd4X5yTxgzLBAahUKdk6JwyU52TPFc2DVpO5c62wNVi1VAw==
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

2026-09-17T10:13:32.754315ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075636
observed 688bc72fcf2716d4fd4b249f5dfc937b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:32.283419ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075636/manifest.json
observed 2a9047a2a6e48142271f8ee741e09d2d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:32.242403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075636/publication.md
observed 2cdd9b30c0b7babeba7dbaf35afee766...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:32.204323ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075636/publication.txt
observed b20f6410a0b6f187b5b702336809eb9a...
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.