OpenTechnical

OT-2026-000081288

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented after 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-2026-000081288) never changes.

Identity and time

Publication numberOT-2026-000081288 · never reused
Internal UUID01a0ae96-f374-73c3-b52a-37b40cf05a85 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081288
StatusPUBLIC

Content hashes

Canonical text51f3757831ea1f6ee53c25076b1d6e04b9145dabd3cb8df0957c7b4c420e96c0
Markdown217d1db63aa275af421961c41d62085bfab9cc817a6d4acd6e4cd6159ce1255f
PDF
Publication pageb59eaedda3680a64024bb5d9de5a4870cd6e7848b8661f0cd7822c8c0c2f012f
Manifest0f47389c1196f736b9ec96c83c97626ebc20d9b069547380b5ec98a2d6037b09

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
SignaturepYhsiCY9IGyEXGaWoxevM1PcvRwGYjswXngo/HM4oTiFJUBFGHG1Ya1q34LCUTqxZC5ZvzG7KqELEZEZvgaJDw==
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

2026-09-17T10:01:23.731395ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081288
observed b59eaedda3680a64024bb5d9de5a4870...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:23.711036ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081288/manifest.json
observed 0f47389c1196f736b9ec96c83c97626e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:23.689178ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081288/publication.md
observed 217d1db63aa275af421961c41d62085b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:23.670193ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081288/publication.txt
observed 51f3757831ea1f6ee53c25076b1d6e04...
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.