OpenTechnical

OT-2026-000081314

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, 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-2026-000081314) never changes.

Identity and time

Publication numberOT-2026-000081314 · never reused
Internal UUID01a0ae96-f374-7412-ab0f-56eafa350bc5 · 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-2026-000081314
StatusPUBLIC

Content hashes

Canonical textd2559559f6d0f1102370635ede9d7b371e020c38d45071361f9556fb4aa40b84
Markdown9fb0b1197400d1178c58e841a0d483510f6a0c9974ec79baffbce2648eeea2b8
PDF
Publication page3d07e37dcb3001645a10afcaa8591dca95b6628d6b9ddaf1a6b46a033edca646
Manifest943ac35820007282b573007883dde317727e2402041f9fb365e883169c0e0526

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
Signature2Hrn0EaSIMJx2/S9lEed1nykKaCkHMBpslS5CGLjon7fa5AVDEsmaeSLmHvESHyxvf7eY4JGKDi5WFwBOoA+CQ==
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

2026-09-17T10:01:25.812271ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081314
observed 3d07e37dcb3001645a10afcaa8591dca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:25.794803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081314/manifest.json
observed 943ac35820007282b573007883dde317...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:25.776427ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081314/publication.md
observed 9fb0b1197400d1178c58e841a0d48351...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:25.758404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081314/publication.txt
observed d2559559f6d0f1102370635ede9d7b37...
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.