OpenTechnical

OT-2026-000005115

Publication integrity record

Vacuum cup gripper, four zone face, plant vacuum fed, contact triggered, vented after set down

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-2026-000005115) never changes.

Identity and time

Publication numberOT-2026-000005115 · never reused
Internal UUID01a0a92e-54c8-7e25-84da-20223f57cd9f · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:46:21.003536Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005115
StatusPUBLIC

Content hashes

Canonical text6e87cd866037348c5ba77fad8c6ca596ff9c47311235d7e4a6d4ca8fe8e34b34
Markdownc0c952b905271eeec6ef553aef61945731c3a94fb3d9a2a6fb886583135907ad
PDF
Publication page46ea635267e41147a467cfde1b10a74ae0ad4f253a5024a1fbce1c7822e1250c
Manifest934f6e16780d646714b76dca7f0895ebb882026ff9d3e29a23fc4212e74bf270

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
SignatureFjAIM0uBl8kKWIjIzqfTsyCoIRRoCBuMiiPDluTR/7BxnmLm/uShd9XjtHoPEBmjoWWhaocfBM+LnbF500ZzAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:50:13.907400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005115
observed 46ea635267e41147a467cfde1b10a74a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:13.894454ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005115/manifest.json
observed 934f6e16780d646714b76dca7f0895eb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:13.879695ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005115/publication.md
observed c0c952b905271eeec6ef553aef619457...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:13.742882ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005115/publication.txt
observed 6e87cd866037348c5ba77fad8c6ca596...
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.