OpenTechnical

OT-2026-000049815

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three 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-2026-000049815) never changes.

Identity and time

Publication numberOT-2026-000049815 · never reused
Internal UUID01a0ae81-8ff0-77cd-adbc-e2c358d1ae13 · 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-2026-000049815
StatusPUBLIC

Content hashes

Canonical text104cc561f7bcbcdc350de45951c80159b7aad343b8b0bdd3d67d7d9eff8fbfd1
Markdown80fac364b7c546d3775fbfe431a8c50a2d21b7a6b281a300cf5eebb250972976
PDF
Publication pageb69141843902f98e62db3ac1bfd9972fc7592cff10b5473b8a4ab8c2d69f24f4
Manifest9718e7227b0832176fd19e91b9700f41dafecbc0c36f9300cb17d952f55a59b2

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
SignatureN9hqBhzBWf2PkYNXaDwa4PDdXeH2c3GA00Es1/RglrpherMYgxpFFrcy/xDVliw8oCDNBjHjdFBhushXfgQ3AA==
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

2026-09-17T11:02:56.695860ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049815
observed b69141843902f98e62db3ac1bfd9972f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:56.676308ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049815/manifest.json
observed 9718e7227b0832176fd19e91b9700f41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:56.651298ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049815/publication.md
observed 80fac364b7c546d3775fbfe431a8c50a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:56.625521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049815/publication.txt
observed 104cc561f7bcbcdc350de45951c80159...
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.