OT-2026-000018221
Publication integrity record
Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, 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-2026-000018221) never changes.
Identity and time
| Publication number | OT-2026-000018221 · never reused |
|---|---|
| Internal UUID | 01a0ae6e-b488-7185-b420-cbdf97485c59 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:14:45.971508Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000018221 |
| Status | PUBLIC |
Content hashes
| Canonical text | 2d91f7a643b6566605ca7b1c5105d4b72e3943e087d5a9fa2951201d4a38e492 |
|---|---|
| Markdown | b070954c1c95bbe3d55db850d3a9caf3c7c3528796f517ccd0eeab8bda3f4692 |
| Publication page | cce389ce3c4b1788f1f0f50be6ca157ce5fc16a8fb6c65631e5d39ce56bfc603 |
| Manifest | 93582f2d2d9e271e514ad7d94ac3dfb74274fd8a587f55409fe988dece48fb3a |
SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.
Manifest signature
| Algorithm | Ed25519 · key
OT-SIGN-2026-01 · Verified |
|---|---|
| Signature | MrnvJCcTZgI8/1pYzPGFjMj3TbDIQBDssTIkr/rcJV9xt+DVpqt2F1oyKFgd75agazvxS1ODfrCVEoGNbEIbCw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
|---|
Independent retrieval
| 2026-09-28T00:41:10.817074Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000018221observed cce389ce3c4b1788f1f0f50be6ca157c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-28T00:41:10.697055Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000018221/manifest.jsonobserved 93582f2d2d9e271e514ad7d94ac3dfb7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T00:41:10.561023Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000018221/publication.mdobserved b070954c1c95bbe3d55db850d3a9caf3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T00:41:10.336095Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000018221/publication.txtobserved 2d91f7a643b6566605ca7b1c5105d4b7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T12:41:44.103291Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000018221observed cce389ce3c4b1788f1f0f50be6ca157c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T12:41:44.033770Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000018221/manifest.jsonobserved 93582f2d2d9e271e514ad7d94ac3dfb7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T12:41:43.974290Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000018221/publication.mdobserved b070954c1c95bbe3d55db850d3a9caf3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T12:41:43.891197Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000018221/publication.txtobserved 2d91f7a643b6566605ca7b1c5105d4b7...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 archive | Pending 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-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|