OpenTechnical

OT-2026-000061281

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, vented 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-2026-000061281) never changes.

Identity and time

Publication numberOT-2026-000061281 · never reused
Internal UUID01a0ae8b-1384-70f9-9098-97470b1fc9a4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:45.252443Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061281
StatusPUBLIC

Content hashes

Canonical texta0a887933afe4628de1dd29efb45f6f49fad3899c8476935d83e38295e2f573c
Markdown80deab5a89873435eb92212d556d73fae2215c2c4a3c7017dd2e1d80f3a5ce6b
PDF
Publication page33956c71f6666b2b69743c5c31d98597ef5ca6a38d0019d1a0103c3693ff97a1
Manifesta00bae59df96d2297cdf9fc2d71f7939a19d8392896e2fad78ca946947e881ce

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
SignatureOuv+a2TvY9uLksN5VBfXXB8nVuCDtOzIZyoBdUNz38XVVd6bEVxdIoOCBAMTwGcPElAXG0J77Xj9fQEVLRsPBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:42:42.249836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061281
observed 33956c71f6666b2b69743c5c31d98597...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:42.231765ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061281/manifest.json
observed a00bae59df96d2297cdf9fc2d71f7939...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:42.215689ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061281/publication.md
observed 80deab5a89873435eb92212d556d73fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:42.198666ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061281/publication.txt
observed a0a887933afe4628de1dd29efb45f6f4...
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