OpenTechnical

OT-2026-000087478

Publication integrity record

Foam pad vacuum gripper, two zone face, plant vacuum fed, supply line pressure sensor, sustained blow-off before set-down

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-2026-000087478) never changes.

Identity and time

Publication numberOT-2026-000087478 · never reused
Internal UUID01a0ae9a-cd51-79d0-b041-8eadae26a9cb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087478
StatusPUBLIC

Content hashes

Canonical text5b6cfb3f4126b08b4b3083e2b13bbbdece81efb6d3072bac1c8b5e661cf51051
Markdown20c09559a3bac2beec8d4e20bcc0b1426e6c5a1e887f8f69abcc9ead11f6b52d
PDF
Publication page287e5fa9b3ea951c34c4e9287061c22132a56b9ad4393fb924d95126fa6a7b18
Manifest91f5213232d4b36b0c7806b7d25a77121416887f730cbcad45be11acda8ed2ef

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
SignaturegPLOUz/2srsDpkV3kU0mo6wDcHZ4IF1i8sY29e5uuZ+Ru2O1GMeKomn5j68x6cI+s0xxyliDn3GDjAuG/AHPAw==
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

2026-09-17T09:50:48.633855ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087478
observed 287e5fa9b3ea951c34c4e9287061c221...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:48.617487ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087478/manifest.json
observed 91f5213232d4b36b0c7806b7d25a7712...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:48.601602ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087478/publication.md
observed 20c09559a3bac2beec8d4e20bcc0b142...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:48.584363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087478/publication.txt
observed 5b6cfb3f4126b08b4b3083e2b13bbbde...
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.