OpenTechnical

OT-2026-000027950

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, single stage ejector, 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-2026-000027950) never changes.

Identity and time

Publication numberOT-2026-000027950 · never reused
Internal UUID01a0ae72-a51e-7e1b-8a94-12c7e868fed7 · 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-2026-000027950
StatusPUBLIC

Content hashes

Canonical text7dc5fac1d58728a4872a39e5042f318632e8432da17d636031b9c665411a4e7c
Markdown7370f1d6db20f4f24ce351318b863b0a4cca9a5db6cb80e1ca529ca3d04ded03
PDF
Publication page391eb47709d923abf43f3d876a3e6533cc62fad6461c390d77c6915f20690a1f
Manifest2437c85a830da2459de289aee3b9a2e2101c6d71c095deb2f3a6a8eac86953ca

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
SignatureP/+KI68tY/986eZMA7UwSCgyS2wHms7u9/idSpBh90t0WXQFbUEEsKSUR7LGXqw0hW4ktur70Lh9iV0b3i45DA==
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

2026-09-17T11:42:08.107898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027950
observed 391eb47709d923abf43f3d876a3e6533...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:08.088780ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027950/manifest.json
observed 2437c85a830da2459de289aee3b9a2e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:08.070188ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027950/publication.md
observed 7370f1d6db20f4f24ce351318b863b0a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:08.049611ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027950/publication.txt
observed 7dc5fac1d58728a4872a39e5042f3186...
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.