OpenTechnical

OT-2026-000006198

Publication integrity record

Bellows cup vacuum gripper, two zone face, pump fed, pressure verified, vented before 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-2026-000006198) never changes.

Identity and time

Publication numberOT-2026-000006198 · never reused
Internal UUID01a0a952-a939-78ac-b679-18062774dbce · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:26:01.915895Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006198
StatusPUBLIC

Content hashes

Canonical text7a42115ea0f90e2fe6629427c845388d0a38f6226c3b0b1df8127e6463e9bef3
Markdownbbc50d3564ec10e26ea7cf470c958beae72718b2bc048548bc05ec2c73fe8785
PDF
Publication pagee50e9f470716aa101c9a518ca84c91939b1d31f3e935e1fb1a0b92c693ab7d8f
Manifest67703264f38925ba6a162381a3c76eae94967faaab392b1477e8a1b017dedefd

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
SignaturelY3iGyTKvEWJWjls15+OqsooPOzhfF/5cjmt2UsR+IRZ2BInbC3E85H67vhr+zM3l0EFhWvV7IDyXtgq2h4ADQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-10-06T04:23:30.676036ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006198
observed e50e9f470716aa101c9a518ca84c9193...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-06T04:23:30.663366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006198/manifest.json
observed 67703264f38925ba6a162381a3c76eae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-06T04:23:30.649677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006198/publication.md
observed bbc50d3564ec10e26ea7cf470c958bea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-06T04:23:30.556142ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006198/publication.txt
observed 7a42115ea0f90e2fe6629427c845388d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-03T04:41:42.141257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006198
observed e50e9f470716aa101c9a518ca84c9193...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-03T04:41:41.984786ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006198/manifest.json
observed 67703264f38925ba6a162381a3c76eae...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-03T04:41:41.599737ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006198/publication.md
observed bbc50d3564ec10e26ea7cf470c958bea...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-03T04:41:41.350041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006198/publication.txt
observed 7a42115ea0f90e2fe6629427c845388d...
fetched by grabo-systems from 34.44.131.203, 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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent