OT-2026-000003422
Publication integrity record
Vacuum control system for lifting systems
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-2026-000003422) never changes.
Identity and time
| Publication number | OT-2026-000003422 · never reused |
|---|---|
| Internal UUID | 01a0a6bf-199e-73ed-9290-fdf5172abeff · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T20:25:36.927028Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003422 |
| Status | PUBLIC |
Content hashes
| Canonical text | 953aefe54b6e488f69b98edce3b37a9f140d7625275a5fee9205a3244012ae43 |
|---|---|
| Markdown | cc337e447edf4c88138bc621dfe6f5c6aed1d3d02e3902861b76eaeddbbf5d58 |
| Publication page | a7a19d0be24a5c4bd3492e4cee0a928f283e2076fabfe9b7e5d671b27d944d8a |
| Manifest | 84064e0d4db6e64bd2c5eabec4624f03ca271afa10b436c1755d44194f9d7046 |
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 | sNfdw3aCQ5LQfb9OFLrIBRykquRgPS0KdSPG+If1EGpaixMQovRq8WuD953h2EH8knQD6SVOSHFbt8tE6L/pDg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:27:02Z batch OT-TS-2026-W38-005 · RFC 3161 token · inclusion proof root 0d980c01ea01b2d7f69845e24a85320c... |
|---|
Independent retrieval
| 2026-10-14T08:41:27.547380Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003422observed a7a19d0be24a5c4bd3492e4cee0a928f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-14T08:41:27.500029Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003422/manifest.jsonobserved 84064e0d4db6e64bd2c5eabec4624f03...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-14T08:41:27.453205Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003422/publication.mdobserved cc337e447edf4c88138bc621dfe6f5c6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-14T08:41:27.200511Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003422/publication.txtobserved 953aefe54b6e488f69b98edce3b37a9f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:41:22.811477Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003422observed a7a19d0be24a5c4bd3492e4cee0a928f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:41:22.563848Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003422/manifest.jsonobserved 84064e0d4db6e64bd2c5eabec4624f03...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:41:22.304008Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003422/publication.mdobserved cc337e447edf4c88138bc621dfe6f5c6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:41:22.001987Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003422/publication.txtobserved 953aefe54b6e488f69b98edce3b37a9f...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 |
|---|