OpenTechnical

OT-2026-000104193

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, pump fed, 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-2026-000104193) never changes.

Identity and time

Publication numberOT-2026-000104193 · never reused
Internal UUID01a0aea5-341f-78be-9ea9-6cdd8134c98d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:17.519068Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000104193
StatusPUBLIC

Content hashes

Canonical textc7400f0de686f1521b3787145f714f8f38b89c9d6d914b674d9b2fec5fc45abd
Markdown72277c4fe6aaa810d6789e5803c2e29d3c3460b8ad204ef37cb3c6316b71261a
PDF
Publication page7c4c18049847cc427d08e8d9935f74b3541e10c9ca0bb078969608c0fc4df986
Manifest0731a566bf20419257b1e0c059ae4b3242520ded3e06f5c964a2853cdf260609

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
SignatureqLWEU0x/f5OaqpG7qVZoPN67DyxzWbrK1TOeLni2AMFR3wIA/pZcnSjyfqadkvBjpEqPCfGQ3mXfDh8JzkhzCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:20:17.412469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104193
observed 7c4c18049847cc427d08e8d9935f74b3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:17.396678ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104193/manifest.json
observed 0731a566bf20419257b1e0c059ae4b32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:17.373813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104193/publication.md
observed 72277c4fe6aaa810d6789e5803c2e29d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:17.355413ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104193/publication.txt
observed c7400f0de686f1521b3787145f714f8f...
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.