OpenTechnical

OT-2026-000075983

Publication integrity record

Three bellows cup vacuum gripper, three zone face, pump 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-2026-000075983) never changes.

Identity and time

Publication numberOT-2026-000075983 · never reused
Internal UUID01a0ae94-2a00-7b5c-9cf2-461484bfb8f0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075983
StatusPUBLIC

Content hashes

Canonical text8454cb0860f18e9a7361e20f1c433cb1d5f11cfc54c0e0cd2d9c5f5c7e8f70ec
Markdownd4a8cac9b240bf82bafcf0cb6a12e9b49d8d3f0c2949e770f12ee67af963790e
PDF
Publication page23dd6a592429b869925a032a7ea0b200ddc836c53e51d6e8844df939f65f6a4e
Manifest7795ed0e527ef25e7cf2a34d889d6402c67af4abb2b23d8048797b9177950a0a

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
SignaturelYzhgsXAF2+ujo2DD0T8z+QCNKHrRglN3S1UAvCYV0okOgDGoynqw2aO+gev4UIQHM0t7EQcSgD3hWtlMz1MCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:20:13.647690ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075983
observed 23dd6a592429b869925a032a7ea0b200...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:13.627783ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075983/manifest.json
observed 7795ed0e527ef25e7cf2a34d889d6402...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:13.605732ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075983/publication.md
observed d4a8cac9b240bf82bafcf0cb6a12e9b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:13.586257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075983/publication.txt
observed 8454cb0860f18e9a7361e20f1c433cb1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:16:01.954214ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075983
observed 23dd6a592429b869925a032a7ea0b200...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:16:01.813005ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075983/manifest.json
observed 7795ed0e527ef25e7cf2a34d889d6402...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:16:01.792150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075983/publication.md
observed d4a8cac9b240bf82bafcf0cb6a12e9b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:16:01.773406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075983/publication.txt
observed 8454cb0860f18e9a7361e20f1c433cb1...
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.