OpenTechnical

OT-2026-000007242

Publication integrity record

Vacuum cup gripper, common isolation valve, plant vacuum fed, silicone cups, flat form

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-2026-000007242) never changes.

Identity and time

Publication numberOT-2026-000007242 · never reused
Internal UUID01a0a977-c333-754a-af26-150f6939dbe9 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:06:33.398554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007242
StatusPUBLIC

Content hashes

Canonical text1a5d226f0b37e7747679d758069e600d0f0901f6e0487ddc17f1efd82b739c42
Markdown40304f02be7e327e9e8879f344030ee764445a42c3ed9f9be981aeb6be6eb83e
PDF
Publication page144b7008fc4c0d3dd5743f8b6f121c960065dc91ddfe9de6aa306cc43d0ae75f
Manifestdbb8bb3267b2ea9709ff4ebb8dbdb7e441ce98fd5dacbe04328ad191c7592944

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
SignatureII4iODeaeRji6O7dxcjuZNCNLx8RWReQ1Uoeq5vM7CmhBK5tjIycRyKgBxm4JiZP0UiN8w4EnmqobJabA6rdDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:10:12.409984ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007242
observed 144b7008fc4c0d3dd5743f8b6f121c96...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:12.398947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007242/manifest.json
observed dbb8bb3267b2ea9709ff4ebb8dbdb7e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:12.386732ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007242/publication.md
observed 40304f02be7e327e9e8879f344030ee7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:12.247662ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007242/publication.txt
observed 1a5d226f0b37e7747679d758069e600d...
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.