OpenTechnical

OT-2026-000076269

Publication integrity record

Four bellows cup vacuum gripper, four zone face, plant vacuum fed, pressure sensor per zone, pulsed 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-2026-000076269) never changes.

Identity and time

Publication numberOT-2026-000076269 · never reused
Internal UUID01a0ae94-6a6f-7a20-a456-7a876fe3ff44 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076269
StatusPUBLIC

Content hashes

Canonical text72b123e74802043f9639b35d2e79b8fb2d793362b0bb71a70c2d3e160dcf31dd
Markdown9c62abeacef02e4df446dae7f0983c509ece9ec09b3e9fcbcfa47c7e3f05ce0f
PDF
Publication page825427be8ff8fb02a1f7d13260e3389c9421c7b2f729e38cb4e69a37720fb708
Manifest28237486067756426431839130fc73deb23d3023f5e5a79145895acc43eba341

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
SignatureDKKh1Fljug73KGGysnFTegGlkR4gAu6XhiKIqtINiUJAT3eTrm8xj72RUdelBzn36KRB1rkGA1ndoToz6B7MCA==
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

2026-09-17T10:12:00.749248ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076269
observed 825427be8ff8fb02a1f7d13260e3389c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:00.547904ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076269/manifest.json
observed 28237486067756426431839130fc73de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:00.526371ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076269/publication.md
observed 9c62abeacef02e4df446dae7f0983c50...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:00.504955ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076269/publication.txt
observed 72b123e74802043f9639b35d2e79b8fb...
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.