OpenTechnical

OT-2026-000042760

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, 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-2026-000042760) never changes.

Identity and time

Publication numberOT-2026-000042760 · never reused
Internal UUID01a0ae7a-c0cf-7403-8eea-1f267174caa6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042760
StatusPUBLIC

Content hashes

Canonical text4da9bd9b2aa56aded338b952e66f56b5a5d1dd51f3ec88787db3804a18ef6cf2
Markdown5611201ca0aaea62190e95f725762065b981ec35b6c1858508020c016e07f8b6
PDF
Publication pagef7f14154b3db1f9827e8532a72d8cd16b886f3bedf39807cb117ac86d5478691
Manifest8326dd279fcd17f98fcf806a1d7db809206cc6a7b6824169ca26f45c181add54

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
SignatureJqUuKdEgVK/oBnlq9gfhdYOZnled3Xazc8P/xrughYui2oH/6zb3mOSf/BvvPfZCRy3sWrPhaxK6UxLICbYeDw==
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

2026-09-17T11:15:12.908468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042760
observed f7f14154b3db1f9827e8532a72d8cd16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:12.889252ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042760/manifest.json
observed 8326dd279fcd17f98fcf806a1d7db809...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:12.870098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042760/publication.md
observed 5611201ca0aaea62190e95f725762065...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:12.849277ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042760/publication.txt
observed 4da9bd9b2aa56aded338b952e66f56b5...
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.