OpenTechnical

OT-2026-000074544

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, 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-2026-000074544) never changes.

Identity and time

Publication numberOT-2026-000074544 · never reused
Internal UUID01a0ae93-717b-7ace-a975-82ed7af4e7dd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074544
StatusPUBLIC

Content hashes

Canonical textd5e3568277868445aa3dfc5d8ae921a8217db6c84ac7f0a4d352e199070680b1
Markdown9467ff2c0bf17b4a40cf6c0fafd68cce6ac55dc35e9e1f750313774fb95b5598
PDF
Publication page0e300b263f09f58320eb007945f82d6ae360dd6f60d8c3ba25a33c8b18f2a5ee
Manifest4f68c97b90aed201c251e3348918411137c897d311f80990361934eb4d4b61d3

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
SignatureP3E9lIDo4fyydzvRcfmcr41YBNx/aeGYm3fLPZQkiXSlLdp5YXXQ2rk/CHWTSVfCcIBtldXvRNECImjZRJGFAw==
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

2026-09-17T10:19:31.675533ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074544
observed 0e300b263f09f58320eb007945f82d6a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:31.655928ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074544/manifest.json
observed 4f68c97b90aed201c251e33489184111...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:31.636589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074544/publication.md
observed 9467ff2c0bf17b4a40cf6c0fafd68cce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:31.616588ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074544/publication.txt
observed d5e3568277868445aa3dfc5d8ae921a8...
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.