OpenTechnical

OT-2026-000077826

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, vented 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-2026-000077826) never changes.

Identity and time

Publication numberOT-2026-000077826 · never reused
Internal UUID01a0ae95-2ed0-7e90-a31c-c76c6c59207e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077826
StatusPUBLIC

Content hashes

Canonical textc3fa34f120e783cb9507f86fb61917fda5971014b0cc9c84ee1819721508cd62
Markdownf4ccde65c7f79cc64de69bc26adedc9aae7673667b58bf124569b0ff315cc9c9
PDF
Publication pagedd3b1f425b7783b2e25f4a3e420cdaef3ceb78ee248767fcb1f6300983908b44
Manifestdbd4c35828ae35a4c2f28ea23790aac8e66f4bd07e164c57149593c1a3b57c0a

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
Signatureo4b6fqNpyK5YMuH6gSFyGcUQc9ByN5JD/Brj0EquMruShmXuBsn4I4R3+1WAfDLwtJFWuH1fIPsTBT+TjhvPBA==
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

2026-09-17T10:07:25.312848ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077826
observed dd3b1f425b7783b2e25f4a3e420cdaef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:25.294943ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077826/manifest.json
observed dbd4c35828ae35a4c2f28ea23790aac8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:25.274601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077826/publication.md
observed f4ccde65c7f79cc64de69bc26adedc9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:25.099153ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077826/publication.txt
observed c3fa34f120e783cb9507f86fb61917fd...
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.