OpenTechnical

OT-2026-000087855

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, pump fed, supply line 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-2026-000087855) never changes.

Identity and time

Publication numberOT-2026-000087855 · never reused
Internal UUID01a0ae9b-1aa5-7096-abe5-4c3bc9d0ac5f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087855
StatusPUBLIC

Content hashes

Canonical text011f376b208c542254cfdf94ba2e26c2085f3732989786a2bcc5e5f40277ec06
Markdowna97beadb566356c1dfa117ff66de5aff0ade0a07b7b6fdc5408f497d56f155c7
PDF
Publication page4fd2175ea370f5093c7d00a729249f162a08e955b88c2af6817b69451e95dcc3
Manifest316332b3a0b417061f420d192a0fe2b989801defe4c684f12cc530fc1a048d56

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
SignatureBOHqsNph438zhNy25KJDnVWk5fDO0Gwp2ztLk9ESdUcjRGUmPc7JvtQLs/WMz4fMQOj/Rs9NXsEErhZF9AuiCg==
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

2026-09-17T09:49:06.173331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087855
observed 4fd2175ea370f5093c7d00a729249f16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:06.154832ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087855/manifest.json
observed 316332b3a0b417061f420d192a0fe2b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:06.104477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087855/publication.md
observed a97beadb566356c1dfa117ff66de5aff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:06.062284ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087855/publication.txt
observed 011f376b208c542254cfdf94ba2e26c2...
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.