OpenTechnical

OT-2026-000049087

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, plant vacuum fed, pressure sensor per zone, 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-2026-000049087) never changes.

Identity and time

Publication numberOT-2026-000049087 · never reused
Internal UUID01a0ae81-134d-7507-99b0-0bc2ca9bb884 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:49.967260Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049087
StatusPUBLIC

Content hashes

Canonical text211f8855947e6f42af63d28a525ea8b2e368c11eef83a3c2bc21153a32f57718
Markdown389dd02340262f4072f284aafff8685310f7c11e12000e5285ed80007c1ff123
PDF
Publication pageeac6a770b31500a0c578c1bcce5b40354c933b98010ad21dfe4d1d9f0d587632
Manifest0745a0adf23ec23ead904f637de5b066a84b75bde449f4890a512de99aea72be

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
SignatureSazPJ8qxvmknzs9SmTApvVXF3xMLOiLK8MaiVbr6uBWd6YQRubo87IFLawUSsb1YtFve/Nk6Yee8mPDhqaTTCQ==
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

2026-09-17T11:03:19.971118ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049087
observed eac6a770b31500a0c578c1bcce5b4035...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:19.954202ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049087/manifest.json
observed 0745a0adf23ec23ead904f637de5b066...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:19.935537ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049087/publication.md
observed 389dd02340262f4072f284aafff86853...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:19.918345ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049087/publication.txt
observed 211f8855947e6f42af63d28a525ea8b2...
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.