OT-2026-000003220
Publication integrity record
System for preventing tipper truck overturning
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-2026-000003220) never changes.
Identity and time
| Publication number | OT-2026-000003220 · never reused |
|---|---|
| Internal UUID | 01a0a69f-dd17-7934-9a18-755207624e6b · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:51:29.815578Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003220 |
| Status | PUBLIC |
Content hashes
| Canonical text | 91edc49e76a637374bcfa9d8beaae16489f7721c70ec00cac078478fd40ea5d6 |
|---|---|
| Markdown | 968ccb80e856744264ae926515771faabf77bf3cfb25c00aea62c9e86ad4f7aa |
| Publication page | 5ce81325a322135050973711c782ab608f8b8f157d4891c16182f0d16702db6a |
| Manifest | 76e8c23915ee775789e221354b0c3f9e62f3589cbd398dd25f8153ed7a5c5636 |
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 | t251X0wMTN78BLmRqSlQF/7X6s6R+yccni4caXcB876AnmiXzPtcx5s9KTDqR/45QVElR1tPbkceA7sOtca2Bg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:07:03Z batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof root d42f3e627490c26ffd144bf37543fecf... |
|---|
Independent retrieval
| 2026-10-02T16:41:40.662202Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003220observed 5ce81325a322135050973711c782ab60...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-02T16:41:40.563530Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003220/manifest.jsonobserved 76e8c23915ee775789e221354b0c3f9e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-02T16:41:40.477710Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003220/publication.mdobserved 968ccb80e856744264ae926515771faa...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-02T16:41:40.343769Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003220/publication.txtobserved 91edc49e76a637374bcfa9d8beaae164...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:41:18.270480Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003220observed 5ce81325a322135050973711c782ab60...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:41:17.992417Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003220/manifest.jsonobserved 76e8c23915ee775789e221354b0c3f9e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:41:17.644572Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003220/publication.mdobserved 968ccb80e856744264ae926515771faa...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:41:17.354006Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003220/publication.txtobserved 91edc49e76a637374bcfa9d8beaae164...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 |
|---|