OpenTechnical

OT-2026-000090376

Publication integrity record

Three cup vacuum gripper, three zone face, two stage ejector, 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-2026-000090376) never changes.

Identity and time

Publication numberOT-2026-000090376 · never reused
Internal UUID01a0ae9c-7f2d-7add-a71f-79db671f7b6e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090376
StatusPUBLIC

Content hashes

Canonical text6429279b13545137967afb17ff982fdc64e7a97a82e921224c0f052397b67f7f
Markdown638c4ccdb1ab8505a6fcfdb10b3b6361c661a200ec98a6721bc94f0c703ad05d
PDF
Publication page4358ca38d38beebe011cecc4004bcfada40baea72e0c28deb436981353759c27
Manifest62b6f22c0b403a2063fcacc1dac3198f6a62441742da4d16dc4f6857f2e94747

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
Signature/fthPlOjaM5pA/Qseazr03iT7Y4IjovSe47PvibAvasJ40XUghfqo1OMSua3U3V0LqrE6yjgqDEXNaBB6btHAA==
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

2026-09-17T09:44:28.819068ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090376
observed 4358ca38d38beebe011cecc4004bcfad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:28.800666ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090376/manifest.json
observed 62b6f22c0b403a2063fcacc1dac3198f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:28.780967ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090376/publication.md
observed 638c4ccdb1ab8505a6fcfdb10b3b6361...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:28.763802ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090376/publication.txt
observed 6429279b13545137967afb17ff982fdc...
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.