OpenTechnical

OT-2026-000006837

Publication integrity record

Bellows cup vacuum gripper, two outlet manifold, pump fed, pressure verified, vented after 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-2026-000006837) never changes.

Identity and time

Publication numberOT-2026-000006837 · never reused
Internal UUID01a0a969-242c-717b-a8f1-6a4b6d9c3a70 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:50:35.183007Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006837
StatusPUBLIC

Content hashes

Canonical textf524c0348a27e68bc51891433368be0b314ea4e92a23b6a66f4be8185ca41be9
Markdowne64bebee7536786cdb3fbb361609eb5f6b81a625c5759e87adc125ec81c93586
PDF
Publication page5fd193437988991cc84156a5676dce151e9968d434ea5ccebb4c177334c77fbf
Manifest023ce10c052f4c56054304fe3d7f7697225009256ba0fdb3b6b4e8964e10adf9

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
Signature4J3Cifa4CUTJDhueQblY69C8KqenhlDBb5FrRxkFoCs1QH4grAnAucc3xtdAfxSE35NNO02hdoz3EQfAitgiBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:30.682045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006837
observed 5fd193437988991cc84156a5676dce15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:30.669742ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006837/manifest.json
observed 023ce10c052f4c56054304fe3d7f7697...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:30.657424ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006837/publication.md
observed e64bebee7536786cdb3fbb361609eb5f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:30.644241ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006837/publication.txt
observed f524c0348a27e68bc51891433368be0b...
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.