OpenTechnical

OT-2026-000042681

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, three stage ejector, 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-2026-000042681) never changes.

Identity and time

Publication numberOT-2026-000042681 · never reused
Internal UUID01a0ae7a-c0cf-774e-84cf-6a6442a14947 · 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-2026-000042681
StatusPUBLIC

Content hashes

Canonical text94184a172c79cc794c1edbd87ab2abf45ffc1ffd9ed0533e2e9c7c4c07d2eecc
Markdownbf9e6abe857ced50ddffc79f68a486e7d1a6944c055ea32acc60ed18dce719b2
PDF
Publication pagea538e001ed6917c1aefe92f57b4a5dc3e33111adc0429bbe4dffeb58d372771c
Manifestf34a679dd7fe6b0fd632b1d3e51590be010392e15c91fde3b829493cc354a93e

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
Signatureav7pFmomLg8sIVB0ABHsl/t69EZnqL/NdGqlCRBnPPPJWqKtl22j9uunfddYrp7FUmZxm+NWmez5QEmpzFKdDQ==
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

2026-09-17T11:15:02.061514ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042681
observed a538e001ed6917c1aefe92f57b4a5dc3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:02.041504ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042681/manifest.json
observed f34a679dd7fe6b0fd632b1d3e51590be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:02.022281ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042681/publication.md
observed bf9e6abe857ced50ddffc79f68a486e7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:02.003078ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042681/publication.txt
observed 94184a172c79cc794c1edbd87ab2abf4...
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.