OpenTechnical

OT-2026-000074497

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, manifold pressure sensor, pulsed blow-off before 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-2026-000074497) never changes.

Identity and time

Publication numberOT-2026-000074497 · never reused
Internal UUID01a0ae93-717a-7b6f-9e50-5de0453891a9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074497
StatusPUBLIC

Content hashes

Canonical text5cf849b2ae3ce91ccfee5da36421353d8be364fbca65aa9b62735309fdc6e11d
Markdown83cb20afbe75bf92ace6ee21d4f78505ea57d8f9912fe5771a472c8fe6cef96f
PDF
Publication pagece9401622eaaf2aabd6d664fd14242b880b12b583399f1e37835e7cce5f1595d
Manifest337206e64948005c8c085bb8a4d68d415cfa24e4ce5cdfeb1a39856e86c5e55c

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
Signaturego4x10dDZ0LW3kD8RjfyqUq1BqIiTZH6h1j/EWvbyL7vA5jX7+6pnSuMSaY9LuWrcBtqYWHsbxSOxqed9qR4AQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:19:28.042984ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074497
observed ce9401622eaaf2aabd6d664fd14242b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:28.003777ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074497/manifest.json
observed 337206e64948005c8c085bb8a4d68d41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:27.984741ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074497/publication.md
observed 83cb20afbe75bf92ace6ee21d4f78505...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:27.965879ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074497/publication.txt
observed 5cf849b2ae3ce91ccfee5da36421353d...
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.