OpenTechnical

OT-2026-000022871

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, pump fed, pulsed blow-off before set-down

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-2026-000022871) never changes.

Identity and time

Publication numberOT-2026-000022871 · never reused
Internal UUID01a0ae70-46eb-71a0-bccf-19cc4f1c87f8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022871
StatusPUBLIC

Content hashes

Canonical text0ae2c579cad06841ba997630de84b051bac84a3d161a17131103545fb3fd4f5f
Markdown4586e034d41a2c42bb3e0d0143776df3aeb85a178d584c0434997c568b7ce072
PDF
Publication pagee64df30844d08d5252977e644c0fb6c840311dbf3fd0ce1098568e23ea21875b
Manifest75bec236cd3efa946e06c349060f7fe365cb5ed3df9e499eff44394b7baa5639

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
SignatureAoZXWO8dOIr/d9o9PuHGnOheF9KqePbvW11NzLhy4I3Njk3/yDR2cAbQY3uokySVtA/WstUPVxtgPUOuhIr4CA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T11:52:25.889551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022871
observed e64df30844d08d5252977e644c0fb6c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:24.908640ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022871/manifest.json
observed 75bec236cd3efa946e06c349060f7fe3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:24.887496ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022871/publication.md
observed 4586e034d41a2c42bb3e0d0143776df3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:24.871839ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022871/publication.txt
observed 0ae2c579cad06841ba997630de84b051...
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.