OpenTechnical

OT-2026-000029451

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, plant vacuum fed, pulsed 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-2026-000029451) never changes.

Identity and time

Publication numberOT-2026-000029451 · never reused
Internal UUID01a0ae73-5e21-7a60-b158-6b0fa1d7d40f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029451
StatusPUBLIC

Content hashes

Canonical text94bf5dbf2a5cb72e3cf615cea8fcf6523c8b1305b75a7f54019074eb0a449256
Markdown96141f24786c5921e253b26674e15f7d8509987d9849a41f5d359fde5e5f06ec
PDF
Publication page68b74086b5a94ee86d2c34c2ea87f5965c6e755e0422b2605e54e80cc39b58bc
Manifest11518ec013c4c720e1e40edc3e49cdedfca470b3e0a9900dfb8d3850cccba923

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
SignaturepUECS69iM6ocYQRgjhpwZrhPdkL/Mvpe34SHk98Ohuww9sVexM8UsTKH9E+hrtvmgLQP9Kmymo/9L+nrdrFZCA==
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

2026-09-17T11:39:03.773183ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029451
observed 68b74086b5a94ee86d2c34c2ea87f596...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:03.756356ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029451/manifest.json
observed 11518ec013c4c720e1e40edc3e49cded...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:03.741608ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029451/publication.md
observed 96141f24786c5921e253b26674e15f7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:03.724808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029451/publication.txt
observed 94bf5dbf2a5cb72e3cf615cea8fcf652...
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.