OpenTechnical

OT-2026-000026692

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, 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-2026-000026692) never changes.

Identity and time

Publication numberOT-2026-000026692 · never reused
Internal UUID01a0ae71-f4aa-764f-a2cf-544b2335909f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:18.960773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026692
StatusPUBLIC

Content hashes

Canonical text3e4da3f7bc3ea603e0a067de49b6cd60244ae731285a3d6c8de039741c0f24c3
Markdown64b0b99f67bbde024b932255736d9abb26c0aeec19380870d949c4d203be398b
PDF
Publication pageb158a2d2678c893af25a0db9a2aa4644b3d9d0da35a7ed16eb78d827d232ee0b
Manifest4585c7e0e6d1642b2774e19e86a70fb56d9dedc026d3add109466b9c7fce5b51

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
SignatureHe6oWHOgchtc+eX4NUGR3wv8VCeOc7SuLGx4GrzgrhSCPisnoC6imOcGaUMFLkd1gfsNFzSVPHeGfZ6Sxx5kCg==
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

2026-09-17T11:45:46.865507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026692
observed b158a2d2678c893af25a0db9a2aa4644...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:46.849103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026692/manifest.json
observed 4585c7e0e6d1642b2774e19e86a70fb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:46.833452ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026692/publication.md
observed 64b0b99f67bbde024b932255736d9abb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:46.811698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026692/publication.txt
observed 3e4da3f7bc3ea603e0a067de49b6cd60...
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.