OpenTechnical

OT-2026-000023457

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, sustained 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-2026-000023457) never changes.

Identity and time

Publication numberOT-2026-000023457 · never reused
Internal UUID01a0ae70-7269-74de-8301-ab72cb7ef2c6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:40.056870Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023457
StatusPUBLIC

Content hashes

Canonical text1fe87abc3fe8b61eeca942bc3e8716230b621f6bfa34a10546371c5844ed4724
Markdown90bf1e336b95dcc7e60237cf0a69b74eaa0391fd4964841cfcdfc1b66ca34ae0
PDF
Publication page803b91f68615f33617404d1fd2df179adf0d6eebab6a33484ee1a430d540e840
Manifest176f18fad46381ea9a98533e9e6450c4f4725c86174e2ec4f4a327610b92c053

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
SignatureYCjc5GZ9+5/sVSeGwgGsvf/acSyyHt1lRvrpXD9k8xik9+AumtdxIg7mI8lRHw6kJR1fCiHAmCBc6jBtrKQqAw==
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

2026-09-17T11:51:40.577653ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023457
observed 803b91f68615f33617404d1fd2df179a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:40.559942ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023457/manifest.json
observed 176f18fad46381ea9a98533e9e6450c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:40.543338ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023457/publication.md
observed 90bf1e336b95dcc7e60237cf0a69b74e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:40.524517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023457/publication.txt
observed 1fe87abc3fe8b61eeca942bc3e871623...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent