OpenTechnical

OT-2026-000056184

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, sustained blow-off after 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-2026-000056184) never changes.

Identity and time

Publication numberOT-2026-000056184 · never reused
Internal UUID01a0ae87-0a4c-7d37-9c32-21458c70d561 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056184
StatusPUBLIC

Content hashes

Canonical text3f49bb705667d00b3af947d403780cf5d7a240682ff9b23f36e90982583af0cf
Markdown9a43565ae3307e62fdb4fc30bbc18874e43b7859e6aa9e0193f1e11cfcef2b57
PDF
Publication page56089ece5a47ad1543cea7d6f4396038b8a4246cce77b0bf4fd33ffed1985d01
Manifest049f07be62b9a3d4fee8c623a2ae8a82adb96666258df0c19d0c47980696b390

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
Signaturet6aLkgOtWQHPg41E/M7cfdqyOHpuT0YlNQ2g8+HeOk2v8p9sHRvRhQ5zQIpkcG2s1eyrd7cUgckGS8lNBvKeCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:44.861658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056184
observed 56089ece5a47ad1543cea7d6f4396038...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:44.845510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056184/manifest.json
observed 049f07be62b9a3d4fee8c623a2ae8a82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:44.828990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056184/publication.md
observed 9a43565ae3307e62fdb4fc30bbc18874...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:44.810796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056184/publication.txt
observed 3f49bb705667d00b3af947d403780cf5...
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.