OpenTechnical

OT-2026-000012988

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, pulsed blow-off before 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-2026-000012988) never changes.

Identity and time

Publication numberOT-2026-000012988 · never reused
Internal UUID01a0ae6d-5564-7e6d-9b17-0e5e91b59e2f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012988
StatusPUBLIC

Content hashes

Canonical textdfdc6deabf7f2f034856fde09960f9ae943fbc73f1630103ae476cf8acd73a15
Markdown4acded235fbd229188b2ffae0df7bedbeaea692a9c5987d67ad4db8b7450060c
PDF
Publication page1db71c36bfc771eb267c617afe3b0762b5a509f44f39b48ffab1219794f1724d
Manifest7ea410f0a218d4a49c6ec845977a1e33744c50fd961125bd126dd51c0a321197

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
Signature/ISiNPoY7pC167tFsVbLO4XiFf69xFGFxTk/Dh6VUFgslANpZs8ajs9ym5lAIzOtYCkxVIss1HCQ+RlSGvrbCg==
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

2026-09-17T12:10:48.253877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012988
observed 1db71c36bfc771eb267c617afe3b0762...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:48.234708ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012988/manifest.json
observed 7ea410f0a218d4a49c6ec845977a1e33...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:48.215148ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012988/publication.md
observed 4acded235fbd229188b2ffae0df7bedb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:48.194955ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012988/publication.txt
observed dfdc6deabf7f2f034856fde09960f9ae...
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.