OpenTechnical

OT-2026-000087810

Publication integrity record

Two bellows cup vacuum gripper, two 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-2026-000087810) never changes.

Identity and time

Publication numberOT-2026-000087810 · never reused
Internal UUID01a0ae9b-1aa4-7997-b995-55c08b014bd9 · 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-2026-000087810
StatusPUBLIC

Content hashes

Canonical textd4b6ad09400947bf2368275f149a4725ef58dbda7aa60724edc09e4b6f7fd022
Markdown17a742506d37db2d5bedf8fc0523bbc7467e6648ad292f525b837584ab684156
PDF
Publication page4195584cda00ce8bc6627bdea3902ae1270228c504e94e3627bf00dd9c5f7f84
Manifest10906f624182047d1d634d8437755631f0ebadf5dd7db3b1d513b97c8d825c81

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
SignatureOXamRJO7N2sOdnOEKelGPUcPmAUiEn+PGnrLUGM+oHICaF6o6X9Ag9Vv+26lG3j+CS95hEHKjiBARlhzPJFlDQ==
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

2026-09-17T09:49:00.949206ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087810
observed 4195584cda00ce8bc6627bdea3902ae1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:00.930953ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087810/manifest.json
observed 10906f624182047d1d634d8437755631...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:00.913113ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087810/publication.md
observed 17a742506d37db2d5bedf8fc0523bbc7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:00.895775ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087810/publication.txt
observed d4b6ad09400947bf2368275f149a4725...
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.