OpenTechnical

OT-2026-000022617

Publication integrity record

Single cup vacuum gripper, common isolation valve, two 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-2026-000022617) never changes.

Identity and time

Publication numberOT-2026-000022617 · never reused
Internal UUID01a0ae70-46e8-7920-920d-95436fcdd4aa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022617
StatusPUBLIC

Content hashes

Canonical text7960fa87df7d5ab9308ed32c0887ac871e1493f23094dc61a225825c7ad57757
Markdown6d3251f6d4239264d5cea72dd7c24ea9bd685421d99bd4de6357af2744aaadf2
PDF
Publication pagedb112da57d22eec97663413308a097efbe47fe08aab0429efbdb94e8ca89e8e2
Manifest31f24a8ecdc129f9aeb518f0f5e9b00c73822e87c96bb8d141c6175a3e8d6a9f

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
SignatureJkVdpo2xippLMJGs/2zbyYc/BmVMsoSc9Wxj/lxXY3vD3t3BDjhqsYPRSm48DUYv+dAMQgZqC7M0GBXJDbQVDw==
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

2026-09-17T11:51:59.354783ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022617
observed db112da57d22eec97663413308a097ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:59.336741ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022617/manifest.json
observed 31f24a8ecdc129f9aeb518f0f5e9b00c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:59.319723ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022617/publication.md
observed 6d3251f6d4239264d5cea72dd7c24ea9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:59.300992ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022617/publication.txt
observed 7960fa87df7d5ab9308ed32c0887ac87...
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.