OpenTechnical

OT-2026-000042609

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, sustained 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-2026-000042609) never changes.

Identity and time

Publication numberOT-2026-000042609 · never reused
Internal UUID01a0ae7a-c0ce-7f77-a666-257903c661ab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042609
StatusPUBLIC

Content hashes

Canonical textcb37d1cfec30d18b059b3d3bbf0f12ba1743a88717a832c0131760447078c3ba
Markdown52095c6e4e65dcac84cf341547a3de82976e2a497e2883791b6b041238fd6d9f
PDF
Publication page511a4317745664a4d44c05665b285c0fef53263eb07e4880be2ff2ebbf5ff70b
Manifest3191b52cbb1dc7259697d3c793f641f687f7836135ae27abdccbb9ca2d2f1449

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
SignatureakRNRXSrjI6TcbClnkTASaZDLyp1pLZh9mQBQp87JH114z/D3F9fAB9ti/fVgod3gk4MMkXBdG1fKYjE3zoQCQ==
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

2026-09-17T11:14:20.189376ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042609
observed 511a4317745664a4d44c05665b285c0f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:20.171148ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042609/manifest.json
observed 3191b52cbb1dc7259697d3c793f641f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:20.152937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042609/publication.md
observed 52095c6e4e65dcac84cf341547a3de82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:20.134132ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042609/publication.txt
observed cb37d1cfec30d18b059b3d3bbf0f12ba...
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.