OpenTechnical

OT-2026-000026757

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, manifold pressure sensor, sustained 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-2026-000026757) never changes.

Identity and time

Publication numberOT-2026-000026757 · never reused
Internal UUID01a0ae72-3451-7989-a6c8-e04c35b84932 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026757
StatusPUBLIC

Content hashes

Canonical text2270e6ce49f69cd722d6d1aa411b4ae2495be1c302c9ff50064c41b40ec72331
Markdowna2701f5b0f3fdc1ca1ba96902cf265e240fb706681e78410fb6245ab4491751e
PDF
Publication page3a269d649ff132c4231f1bc20baacc00a061af1225e92c6fc298419f906bbec2
Manifest1bffdb8147ebfd1988e2bbcf9f65555debcc04a3a9136c84c486f205c3233090

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
Signature/6RdvSkmiqEX8df9dpwYali67Ot0L7kE5aA+gD6Cmpe52rUa9FSEr6roV/hh5gWB5x2XZNfvmshX6PpBLMioDw==
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

2026-09-25T04:41:22.224335ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026757
observed 3a269d649ff132c4231f1bc20baacc00...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-25T04:41:22.079498ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026757/manifest.json
observed 1bffdb8147ebfd1988e2bbcf9f65555d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-25T04:41:22.030283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026757/publication.md
observed a2701f5b0f3fdc1ca1ba96902cf265e2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-25T04:41:21.897196ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026757/publication.txt
observed 2270e6ce49f69cd722d6d1aa411b4ae2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T11:43:19.648408ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026757
observed 3a269d649ff132c4231f1bc20baacc00...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:19.632093ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026757/manifest.json
observed 1bffdb8147ebfd1988e2bbcf9f65555d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:19.616733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026757/publication.md
observed a2701f5b0f3fdc1ca1ba96902cf265e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:19.598527ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026757/publication.txt
observed 2270e6ce49f69cd722d6d1aa411b4ae2...
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

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