OpenTechnical

OT-2026-000051157

Publication integrity record

Single cup vacuum gripper, single stage ejector, vented 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-2026-000051157) never changes.

Identity and time

Publication numberOT-2026-000051157 · never reused
Internal UUID01a0ae83-273f-7ace-a638-99b48f8bca74 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:37:05.998905Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000051157
StatusPUBLIC

Content hashes

Canonical textbc252932c365d7fe6aafb3c8f3e6f1d27a8121fb1b3fd20b1cd2aa58d7e2fc8b
Markdownd0c076024716a8ff250e0b8d46b1c3c118cc553310a4e23e018ab089edffe4f5
PDF
Publication page58868571f3da0103bc24e1d0f2055c39cb5d481303d37c122f86a26d29577ed5
Manifest1350833d9d216984fb714520361c96229af9ef6a86b872a6808297df8aaba72e

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
SignatureXEXlCtXXey3ry8Je2Gcj85HrYzn3DD2T1qAPoggb7g/nLJShM6D+ewugVlaWXuDzhB5NZX3m+CxCo19mM2hSCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T10:58:55.239312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051157
observed 58868571f3da0103bc24e1d0f2055c39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:58:55.214772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051157/manifest.json
observed 1350833d9d216984fb714520361c9622...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:58:55.191632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051157/publication.md
observed d0c076024716a8ff250e0b8d46b1c3c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:58:55.171893ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051157/publication.txt
observed bc252932c365d7fe6aafb3c8f3e6f1d2...
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.