OpenTechnical

OT-2026-000091159

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, 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-2026-000091159) never changes.

Identity and time

Publication numberOT-2026-000091159 · never reused
Internal UUID01a0ae9c-f16b-7e38-886f-b59fc5792493 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091159
StatusPUBLIC

Content hashes

Canonical textb9434fd8458bc19feff4182f0710a4340717131224b6e097b0c6b9038ed12f9c
Markdownac26deff72e818a7fc2bf4b7bb4f73576b1ea2fc1165bfc946a49f15c8424cfb
PDF
Publication page31a91c4fe9ebfca05d41d5aef61a58a706a14a0cf93226759df66542e08d0318
Manifest746360cad02412bce73af535c954730fb0f908710f306a67905a7290f2316321

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
SignatureWVZwqsXt3IGgilq44EDb+uv7riOEiXsMFLMV2GYmAC0B+EfNF+2mErgzPA5V8IFsWeO7yZuz53rSnFn6NhMICQ==
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

2026-09-17T09:43:18.790584ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091159
observed 31a91c4fe9ebfca05d41d5aef61a58a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.773044ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091159/manifest.json
observed 746360cad02412bce73af535c954730f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.756257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091159/publication.md
observed ac26deff72e818a7fc2bf4b7bb4f7357...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.739123ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091159/publication.txt
observed b9434fd8458bc19feff4182f0710a434...
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.