OpenTechnical

OT-2026-000104304

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, pump fed, pulsed blow-off after 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-2026-000104304) never changes.

Identity and time

Publication numberOT-2026-000104304 · never reused
Internal UUID01a0aea5-3420-7b23-b824-804c1730f6f8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:17.519068Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000104304
StatusPUBLIC

Content hashes

Canonical textdac205b9efc9a74b68cff49d8e5daed35a56272a48baf93f5e5d66f13d17db7b
Markdown673fd4b1567d4badd1d5e8eda2cdc2781f94c7cce4be3512c400b53d658579b1
PDF
Publication pagee9fb4da86bdd7cd978845c39744fe52cb56dba8ee1b29f43bd7f53c70625f331
Manifest71fe9a64e276c6b2aae2c1e7c0f5baf210d7599b718dd4ff4e21c220d90bbc18

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
SignaturekI9A247L9BFKxw5tIruEvEN53UnRUIBK+0vjCZ1McTtF6q4pZqqayJuAeeWTv9hi+pmMAB66DY9nYi9DiAeFDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:21:33.043809ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104304
observed e9fb4da86bdd7cd978845c39744fe52c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:33.026200ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104304/manifest.json
observed 71fe9a64e276c6b2aae2c1e7c0f5baf2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:33.008538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104304/publication.md
observed 673fd4b1567d4badd1d5e8eda2cdc278...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:32.991322ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104304/publication.txt
observed dac205b9efc9a74b68cff49d8e5daed3...
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.