OpenTechnical

OT-2026-000049681

Publication integrity record

Six cup vacuum gripper, six outlet manifold, pump fed, manifold pressure sensor, sustained 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-2026-000049681) never changes.

Identity and time

Publication numberOT-2026-000049681 · never reused
Internal UUID01a0ae81-8fee-7f18-83df-13eb39119ce7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049681
StatusPUBLIC

Content hashes

Canonical text2a026a44bde71b9e0ed33674508afdd2ccabee951010894e259995a149c88491
Markdown7894fd5feb4f88ac48c6e1d46282b56335240d288d9039595d3c582367838e85
PDF
Publication pagef1da0d43b880c56ab7e8c1f72ae52ef6ff99b9f26555991e9aa043efab8c6473
Manifest40d2e96494612c60bcc6260b78dbc7a756ac8d229a21cc1988956e981e7bea7f

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
SignatureOl41gA0D0bPJRdmtipVGdBU0nzwqgrLojKC5xzHarIgfIbUfdeY0yc8o2kylOopYPxZN1TahgwCBpWiuPlriAA==
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

2026-09-17T11:02:41.362034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049681
observed f1da0d43b880c56ab7e8c1f72ae52ef6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:41.342876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049681/manifest.json
observed 40d2e96494612c60bcc6260b78dbc7a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:41.321410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049681/publication.md
observed 7894fd5feb4f88ac48c6e1d46282b563...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:41.300692ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049681/publication.txt
observed 2a026a44bde71b9e0ed33674508afdd2...
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.