OpenTechnical

OT-2026-000031108

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, 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-2026-000031108) never changes.

Identity and time

Publication numberOT-2026-000031108 · never reused
Internal UUID01a0ae74-87aa-7395-92d7-da8792849486 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031108
StatusPUBLIC

Content hashes

Canonical text92b8683ac370b77472f2940e6fd2e53f8fef290850f36ef57b2652282eb405d1
Markdown8dd3f570cc9a72df188a0ccd854f101b8bd3e484f3c9c3f780d1abbf8c55f44f
PDF
Publication pagea2060a115cf4c0c4363e4e1ac50363e82c1bd40a2b5a7ce67c7e327001cf8a86
Manifest5f75f1124a202a58a863a3ce972900245caaac36f454fa8c83caebac16d79341

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
SignatureDMC2oRtkR3MOJTWyLkHAtFip0KJsqjttzQXnjkSqdmgHPOEQVlqpLOypzU1vaTXGT1U9PQX39Zs6dhpUZgiIAA==
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

2026-09-17T11:35:32.322840ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031108
observed a2060a115cf4c0c4363e4e1ac50363e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:32.305782ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031108/manifest.json
observed 5f75f1124a202a58a863a3ce97290024...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:32.287797ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031108/publication.md
observed 8dd3f570cc9a72df188a0ccd854f101b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:32.271555ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031108/publication.txt
observed 92b8683ac370b77472f2940e6fd2e53f...
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.