OpenTechnical

OT-2026-000082920

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, 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-2026-000082920) never changes.

Identity and time

Publication numberOT-2026-000082920 · never reused
Internal UUID01a0ae97-8cca-7fac-b0c9-794afbef65be · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:22.827170Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000082920
StatusPUBLIC

Content hashes

Canonical text3ebc067e33f1b3a1862a44fccefe59b28aa29041d59b6a603abe6407c5c1b44c
Markdown35a7294db3b65bdd23e7fe95ed4cf8704a9fb7de4135e2c4649ef991133d4377
PDF
Publication pageebf33adc1dce0e94782beeffc1d4976e895b68755976507d789484356f6a486b
Manifest3610ad82860b9633acf770352be58048ade15f978cb213b6e8bb862b25999d57

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
Signatureky1QHLw6Q+tRJuH2rWZVWXs7OiOHmaJSIYvG5g0uxV7elM6SquP+qw7J8fl9g2MpJP/8+ZWfPvGFQwbyr+LSAA==
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

2026-09-17T09:58:36.683006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082920
observed ebf33adc1dce0e94782beeffc1d4976e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:36.666372ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082920/manifest.json
observed 3610ad82860b9633acf770352be58048...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:36.649156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082920/publication.md
observed 35a7294db3b65bdd23e7fe95ed4cf870...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:36.633236ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082920/publication.txt
observed 3ebc067e33f1b3a1862a44fccefe59b2...
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.