OpenTechnical

OT-2026-000029547

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, pump 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-2026-000029547) never changes.

Identity and time

Publication numberOT-2026-000029547 · never reused
Internal UUID01a0ae73-5e21-7435-9813-bf9bf3c4130a · 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-2026-000029547
StatusPUBLIC

Content hashes

Canonical textac712291b19ade5e165e1ef9387aabb33093dc207e5fb8772b9041b5e09fbb88
Markdown706f1a1114538ebf588a08ae4810724b5ddaf726d28cf2bdc6cfcb4e8bacc778
PDF
Publication page3ca999f90130a9a58f0f23313d92a4b71dcec9923685dc33648dc2819b3412af
Manifest95ad36df5e1eee0ab8884f663ef09e946ff84cfb64511538d21ffe39fb27145b

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
SignatureE2/ZigzeO8KrFIbNNwz19Q8X+GJ8IO9h77X8HUYy/4/CFcTfcNJL4wZLPGbNvoU7kEOlu4wK4S/4usg6WqlyCA==
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

2026-09-17T11:39:12.215176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029547
observed 3ca999f90130a9a58f0f23313d92a4b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:12.199406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029547/manifest.json
observed 95ad36df5e1eee0ab8884f663ef09e94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:12.180009ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029547/publication.md
observed 706f1a1114538ebf588a08ae4810724b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:12.159207ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029547/publication.txt
observed ac712291b19ade5e165e1ef9387aabb3...
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.