OpenTechnical

OT-2026-000049676

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, pulsed 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-2026-000049676) never changes.

Identity and time

Publication numberOT-2026-000049676 · never reused
Internal UUID01a0ae81-8fee-7298-ba98-b5652deb1157 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049676
StatusPUBLIC

Content hashes

Canonical texteff8121dd674afeda1a3430c047c0907f36d852e6ec92bc1588481354bbab9de
Markdownbed6051b77419fff6303885aee626fae0d70718a814bbe096ba5a3d37016b2e3
PDF
Publication pagefb9eec8226978642d2adc4b256a8dfc530a84c465baf5c13e45ebbed863221cc
Manifestba7d34d027123eadb2ecfea02649265b789e97c1dd6c355e3a2510ae6051d637

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
SignatureVcL+U/PtfuJrbtiW9+Bbu/fr9xTvwJCvp0A1ypBKnsRNFzYDsRwiedKRJOzQzqbUzmIt1v+zyy6L2FW5Y07ZAQ==
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

2026-09-17T11:02:40.946656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049676
observed fb9eec8226978642d2adc4b256a8dfc5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:40.929491ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049676/manifest.json
observed ba7d34d027123eadb2ecfea02649265b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:40.910249ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049676/publication.md
observed bed6051b77419fff6303885aee626fae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:40.891253ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049676/publication.txt
observed eff8121dd674afeda1a3430c047c0907...
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.