OpenTechnical

OT-2026-000062454

Publication integrity record

Foam pad vacuum gripper, common isolation valve, two stage ejector, vented after 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-2026-000062454) never changes.

Identity and time

Publication numberOT-2026-000062454 · never reused
Internal UUID01a0ae8c-0ac0-715d-ba79-f4ddbfc31978 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:48.542263Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000062454
StatusPUBLIC

Content hashes

Canonical text7173c47c5b22d3a75b97dec0b27403872a1caf4b43e38cb341368028a52c52ab
Markdown1badd0868f77424f9ab62fd315e9252aef913b6bc2b8e6f38298ccc46a96f63f
PDF
Publication pagee529c3eff26c4b0f913a6e870aefbbad9fc030c5f645307bc5e7a20ce0c8b4cc
Manifest6b2a57075c2fd3d4e2fe16952841cf8dc3cc27a07890bee74d483d1e021f6249

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
Signature9gRfp4CjcpVqmd2WK1wNEER8hiiN4LR9IdL7cosQY9xX51HZKeCz700DV0PrOfAnmAdizsD0zRqRhBETG6G2Ag==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:39:48.041263ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062454
observed e529c3eff26c4b0f913a6e870aefbbad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:48.022434ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062454/manifest.json
observed 6b2a57075c2fd3d4e2fe16952841cf8d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:48.004296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062454/publication.md
observed 1badd0868f77424f9ab62fd315e9252a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:47.984931ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062454/publication.txt
observed 7173c47c5b22d3a75b97dec0b2740387...
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.