OpenTechnical

OT-2026-000027905

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, sustained 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-2026-000027905) never changes.

Identity and time

Publication numberOT-2026-000027905 · never reused
Internal UUID01a0ae72-a4a5-7bd6-8495-42a2c7511f19 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027905
StatusPUBLIC

Content hashes

Canonical text1110cfa4e8c68eab7c1ef9c355bf851aa014937458f795d1552037ed224fa932
Markdowne077857d452143437a2a42bf165174310fd2807966d1dd8f3a85d89fa0ca1e48
PDF
Publication pageb6c012f7eebbc549611af740d0988f36f87bcce0dd2914e5ff6ff5190cd19bca
Manifest0adbc69343a1a6b90b591b196ffa35b78dadb1ebb0e47b607bf6b95d38cc64f3

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
SignatureasQztksD4e3tQbV3jbDUvFJeTKR4TwC/Ml2FNQdAqrTb2ck39XP4sxYaXMVBZ30PcgoGo6GMYOQ7bQ7CEzNyBg==
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

2026-09-17T11:42:04.432903ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027905
observed b6c012f7eebbc549611af740d0988f36...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:04.416529ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027905/manifest.json
observed 0adbc69343a1a6b90b591b196ffa35b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:04.399554ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027905/publication.md
observed e077857d452143437a2a42bf16517431...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:04.382670ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027905/publication.txt
observed 1110cfa4e8c68eab7c1ef9c355bf851a...
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.