OpenTechnical

OT-2026-000022181

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, sustained blow-off before set-down

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-2026-000022181) never changes.

Identity and time

Publication numberOT-2026-000022181 · never reused
Internal UUID01a0ae6f-f4fc-7ddc-af86-ee6c2315eeea · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022181
StatusPUBLIC

Content hashes

Canonical text7203241e4b29be3590b409e9f366e3378f9b3c120096b30813920712aeb3b06e
Markdown1afc99eb1b0ce5728869af13fcc6e54ccb3d9ee642b2df80aa4dd4e08c4ae897
PDF
Publication pageb372c682078239bf4a9556087b59b7b419a4957b2b67eaa9ac6d425105ee7ebd
Manifest86dfcb49574c7c14cdb9d2d78e2ce4e9867ea1a31cbb357d178a755f2aa5a45a

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
SignaturekxO6P7hFZ3gcN0LsvhY//S3etT+D6qpqtBvEXZxnWs/0htM7XqMzFOXO80DHzT2F2FzJCVUcDySK0p7G+HwTBQ==
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

2026-09-17T11:52:51.789717ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022181
observed b372c682078239bf4a9556087b59b7b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:51.772461ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022181/manifest.json
observed 86dfcb49574c7c14cdb9d2d78e2ce4e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:51.754263ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022181/publication.md
observed 1afc99eb1b0ce5728869af13fcc6e54c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:51.733268ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022181/publication.txt
observed 7203241e4b29be3590b409e9f366e337...
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.