OpenTechnical

OT-2026-000037175

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, two stage ejector, 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-2026-000037175) never changes.

Identity and time

Publication numberOT-2026-000037175 · never reused
Internal UUID01a0ae77-7741-7bca-832e-5d3fd08ff040 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:24:20.049316Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000037175
StatusPUBLIC

Content hashes

Canonical textd2a0e5ba1b11fe1311f761cbf8320e444add2992877f98357c0e196a2dade195
Markdown5e757033a887be40cd8b5b810fc9ca8bfc5c08675fc28e32928bb898b06f2745
PDF
Publication page6d7f07d52dc06041b972bf7ed04ef17fa0a6014034e3d557347ab85eb12b6a21
Manifeste9f4c7fb1bafff21d77eb4df7336ce05e5e1afd744c72176240d200b61c215be

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
Signaturepvc12VwiBzOx6/JBDcTz8YKqOnd0Zcr5W9hkddzaHvIUd1c1dmvL+BocUkf7LmAsRCl2w3xBNpyyXtdSdh51BQ==
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

2026-09-17T11:25:03.637693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000037175
observed 6d7f07d52dc06041b972bf7ed04ef17f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:25:03.620777ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000037175/manifest.json
observed e9f4c7fb1bafff21d77eb4df7336ce05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:25:03.604690ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000037175/publication.md
observed 5e757033a887be40cd8b5b810fc9ca8b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:25:03.588195ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000037175/publication.txt
observed d2a0e5ba1b11fe1311f761cbf8320e44...
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.