OpenTechnical

OT-2026-000041597

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, sustained blow-off after 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-2026-000041597) never changes.

Identity and time

Publication numberOT-2026-000041597 · never reused
Internal UUID01a0ae79-e8a0-7aae-beaf-c274a6dacad0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:00.220789Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041597
StatusPUBLIC

Content hashes

Canonical textef44f56bb39fd8c2fbea09fc6f4accd57c35f5242615b16a4993fca2346947ea
Markdown0c699b8c33c86c0a2770367fd0059b038a23d2b611b6271039fecd83d5c4d4c5
PDF
Publication page1c782d9b62be50ba2aa43439f516b2b6d5628aed00fb77178a62c1bc9bca1fd9
Manifest7fd783b2b516da3583cd7b5af9a8ea238e76714cc05abc7e8182aee22a84b505

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
SignaturepvFtA/Qj4lG3t6COz2i/Avki1dD+ZCqQOqEzTqqcH7/IC8cdiKqQYqzdLLxfEimeuIy8RRuLQq2xv8+J4/A8Bg==
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

2026-09-17T11:16:23.273522ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041597
observed 1c782d9b62be50ba2aa43439f516b2b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:23.255685ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041597/manifest.json
observed 7fd783b2b516da3583cd7b5af9a8ea23...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:23.239302ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041597/publication.md
observed 0c699b8c33c86c0a2770367fd0059b03...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:23.221775ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041597/publication.txt
observed ef44f56bb39fd8c2fbea09fc6f4accd5...
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.