OpenTechnical

OT-2026-000078644

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, vented 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-2026-000078644) never changes.

Identity and time

Publication numberOT-2026-000078644 · never reused
Internal UUID01a0ae95-7c2a-7f95-add2-923d3eba6015 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078644
StatusPUBLIC

Content hashes

Canonical text63411b2c097d1691f33d7336be859e12ec53b18187647bb4c45b27013af5e892
Markdown1074008dba2fa07d2518f47c6de40adc193bd423cce89bac2d9686dea24fb0d5
PDF
Publication pagec4ecc9e6901169f14cd30d0784db7d4c578c496d454c860311aac4d8b4a379d5
Manifest94a7a166bc0cdfec81792211963f094e1c23ff0dd722f66db5761ba339a1876c

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
SignatureEXaZ4wJDq8wbs658QGyn/3pwh1o2QDvd71y5EIDfutUBN+D0WrxePMc7pRZdFiX52Tjs9kc791Gs3Q5A419fAQ==
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

2026-09-17T10:06:41.394314ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078644
observed c4ecc9e6901169f14cd30d0784db7d4c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:41.377273ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078644/manifest.json
observed 94a7a166bc0cdfec81792211963f094e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:41.359658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078644/publication.md
observed 1074008dba2fa07d2518f47c6de40adc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:41.341137ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078644/publication.txt
observed 63411b2c097d1691f33d7336be859e12...
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.