OpenTechnical

OT-2026-000049207

Publication integrity record

Two cup vacuum gripper, two zone face, three outlet manifold, single stage ejector, 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-2026-000049207) never changes.

Identity and time

Publication numberOT-2026-000049207 · never reused
Internal UUID01a0ae81-134f-720b-92ec-4a5dd03aabb4 · 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-2026-000049207
StatusPUBLIC

Content hashes

Canonical textff03fd10e5ac67516eecd3725f729f30c7a43e75c094b76c68cf8e5b1bfb14f2
Markdown1c52c367e4c149cc354a8092b4f6191f3c19db4b42ce7234b88fc4482ac6e1b4
PDF
Publication page45a95314993e9eaa2bae7e5318c42892f2dc36fee728fea3539275d615f9a376
Manifest99284442801bd016e12ff48e81fabbb58b1f380372446fe70050784ec6313d2e

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
SignaturepEhkSCFCEUPflSBm2DAMXZFSVpLkXGqkHcrg3op2m2K6aZzVkx2od2zNi0DvWIkCB0/nnYEJWwVIFbW1HvFEAA==
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

2026-09-17T11:04:01.337753ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049207
observed 45a95314993e9eaa2bae7e5318c42892...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:01.320046ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049207/manifest.json
observed 99284442801bd016e12ff48e81fabbb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:01.302082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049207/publication.md
observed 1c52c367e4c149cc354a8092b4f6191f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:01.284445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049207/publication.txt
observed ff03fd10e5ac67516eecd3725f729f30...
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.