OpenTechnical

OT-2026-000026249

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, manifold 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-2026-000026249) never changes.

Identity and time

Publication numberOT-2026-000026249 · never reused
Internal UUID01a0ae71-f4a5-7a2c-a322-d03b64e508ba · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:18.960773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026249
StatusPUBLIC

Content hashes

Canonical text560ebfa1fb22f6f3fab3be96c97cf9d48d432685e2aa2172d6fe1b890295fc0b
Markdown369ae9006b01a6d0e2639c6550041e755923085c334c9959c5d61a0479f2574c
PDF
Publication page9a237a74205b2250ad1884beead417e7f549440d2549ce8369fc824171ed60f0
Manifest7f0af1466241924abe8b3dcb0d5ed4c4abf2a2f648b4c32ab57654c4ffbe97b8

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
SignatureDmB040L6AufKUgJhf1tDeiQm0RMgZoJ+Af22ybvo0BPGcBx1OkasmqhUWOxzYjYPYOlMSbjNS1jKj9BsD2PmAw==
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

2026-09-17T11:44:11.516517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026249
observed 9a237a74205b2250ad1884beead417e7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:11.500685ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026249/manifest.json
observed 7f0af1466241924abe8b3dcb0d5ed4c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:11.484404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026249/publication.md
observed 369ae9006b01a6d0e2639c6550041e75...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:11.467244ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026249/publication.txt
observed 560ebfa1fb22f6f3fab3be96c97cf9d4...
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.