OpenTechnical

OT-2026-000081404

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000081404) never changes.

Identity and time

Publication numberOT-2026-000081404 · never reused
Internal UUID01a0ae96-f375-7d03-a8e5-ecac9c98cbf7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081404
StatusPUBLIC

Content hashes

Canonical textfe9d5ba1c5266afc722b8eba34aef35d731d1e426698abb48c29176f9242f009
Markdown45de57ba32be0fd03640bb5a4a228e934be52b27ffc38eef56ce31fdd02af7d8
PDF
Publication page26a523ae6f171096348e365154de947ddccbf9d1b2f6d6db530016d4c7e50efa
Manifesta39b609bd613abb44abe1754e3ee8cb578cbd294b2116d5e24b3e75b472b4d07

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
SignatureCWPskeVrzY/h7h9qi71E1V4mfXhlFAl8iTFpj8TSCUaqovNkZFnnEEqUxKkC89XDyzRCdzwPtAoPduCPmxd/Aw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:01:33.083845ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081404
observed 26a523ae6f171096348e365154de947d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:33.066583ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081404/manifest.json
observed a39b609bd613abb44abe1754e3ee8cb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:33.049363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081404/publication.md
observed 45de57ba32be0fd03640bb5a4a228e93...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:33.032572ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081404/publication.txt
observed fe9d5ba1c5266afc722b8eba34aef35d...
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.