OpenTechnical

OT-2026-000018421

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, supply line pressure sensor, pulsed 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-2026-000018421) never changes.

Identity and time

Publication numberOT-2026-000018421 · never reused
Internal UUID01a0ae6e-b489-7bed-9985-8ec53e9393e9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:45.971508Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018421
StatusPUBLIC

Content hashes

Canonical textbbd8c3bd3e05ad00b9a6c17a7b49ef38f0eb1723d68b5270a036a5ffe6716561
Markdown640b051244b508a98eb1b80ebde342fe265e0a6e673699b65bbb8844bbd6d640
PDF
Publication page81ed420c44c860ba14d6fd09584fce0ed5d735e6f63815a6002fbe193e4dee7f
Manifest8ac3d519390d903e375a40763c1b2db501c9b973c9c4b84e98563922bea7c684

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
SignatureL6GzM78gBPyzG+VbrSUyHii6DAAniQB5BHPYGbecfBpe/cUSbP5a3kgU1KZ6dGG+eNbVouL9spu5yUsEYY7HAg==
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

2026-09-17T12:01:10.152822ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018421
observed 81ed420c44c860ba14d6fd09584fce0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:10.135413ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018421/manifest.json
observed 8ac3d519390d903e375a40763c1b2db5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:10.117366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018421/publication.md
observed 640b051244b508a98eb1b80ebde342fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:10.099411ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018421/publication.txt
observed bbd8c3bd3e05ad00b9a6c17a7b49ef38...
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.