OpenTechnical

OT-2026-000030504

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, 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-2026-000030504) never changes.

Identity and time

Publication numberOT-2026-000030504 · never reused
Internal UUID01a0ae73-e504-7ad7-9259-367946017d69 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:26.007257Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030504
StatusPUBLIC

Content hashes

Canonical text914363a95d808b70ee1519dbea6eb75b5d8839c128a318d4263bd0b8c794bc8c
Markdown63426d28643ba50f41ad90d203f8b5629f8396f96aee7345a6c58d0a74e230c4
PDF
Publication page7e8c76084be14637fd9bb1a7ea39fa1fc9cec607a890cfd20a4b90ca960159d8
Manifest73a9303749c1564526a63952357412ad7afc3ca0768b4a8beae75ec950ef3aa0

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
SignatureEpoOT/L0vphvWIM8a7siZE/Z27f22JoRoow3WW2IjKOS3N9hh4mANEzdTthAB9GV1MAqc5sIjcy+SBBq26zKBw==
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

2026-09-17T11:38:21.624093ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030504
observed 7e8c76084be14637fd9bb1a7ea39fa1f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:21.608218ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030504/manifest.json
observed 73a9303749c1564526a63952357412ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:21.592751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030504/publication.md
observed 63426d28643ba50f41ad90d203f8b562...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:21.575538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030504/publication.txt
observed 914363a95d808b70ee1519dbea6eb75b...
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.