OpenTechnical

OT-2026-000055420

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, single stage ejector, manifold pressure sensor, pulsed blow-off 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-2026-000055420) never changes.

Identity and time

Publication numberOT-2026-000055420 · never reused
Internal UUID01a0ae86-a101-7d62-97a7-c70b53e68abd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:53.783868Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055420
StatusPUBLIC

Content hashes

Canonical text90a28e388af733d470693e20c24654af48e8deec56ae74ecb5415941a1de253d
Markdowna30b4ec344554007045382bd7296681526dbaffcb74101a76901c762cf250e79
PDF
Publication pageb8a0f4a4d42de5ed80a5dc132688a9aa1f281a200f20de21f0c291e039b29c74
Manifest7c061eff5ac49a6960d32cabeb166ef5993fba36f44cb494dd0c10c4eefd2d2d

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
SignatureGK2AJjbcTlJZmEMhLQG1uDaDaozeqFIc7zEPk4gaJsZyq1kXqNMdrvv47WlhipMnKEjhkQNlvi2jDC9g92NMDA==
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...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:52:03.971703ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055420
observed b8a0f4a4d42de5ed80a5dc132688a9aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:03.952487ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055420/manifest.json
observed 7c061eff5ac49a6960d32cabeb166ef5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:03.935263ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055420/publication.md
observed a30b4ec344554007045382bd72966815...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:03.918355ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055420/publication.txt
observed 90a28e388af733d470693e20c24654af...
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.