OT-2026-000002804
Publication integrity record
Risk control method and device for demolition robot
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-2026-000002804) never changes.
Identity and time
| Publication number | OT-2026-000002804 · never reused |
|---|---|
| Internal UUID | 01a0a67e-e0d5-7a13-9254-3cfc9e56ce54 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:15:28.085691Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002804 |
| Status | PUBLIC |
Content hashes
| Canonical text | 5af4a8bcf77f012ba01974904f791cef8eb099096c18ba63aabc3f1055a0179f |
|---|---|
| Markdown | f0f2506f81b564cdce5c335902883390a290edcecaa60a176fe2e3225cebc047 |
| Publication page | 24984bf296d4ec3fb492a2fa50282d763a2deedb0ec1bc308e02b880410f0ff0 |
| Manifest | 1c8ccec8c959e83e526eb129f376bc4c8ea59706e7dc6e8b79d25e2741ce8a65 |
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 | L8IGHNdPuB8QXuP/Kmf9t+XQxmBXKJtF3hJBgvN/XHcGjeWngNFvDJuq3DYTSzmzfAarx5n9Ut9Coc46VxD7AQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:27:02Z batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof root 2d7e364e718bd6a32072ec57f9edc195... |
|---|
Independent retrieval
| 2026-10-30T00:41:36.249447Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002804observed 24984bf296d4ec3fb492a2fa50282d76...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-30T00:41:36.187614Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002804/manifest.jsonobserved 1c8ccec8c959e83e526eb129f376bc4c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-30T00:41:36.122035Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002804/publication.mdobserved f0f2506f81b564cdce5c335902883390...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-30T00:41:35.863885Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002804/publication.txtobserved 5af4a8bcf77f012ba01974904f791cef...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:20:31.943864Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002804observed 24984bf296d4ec3fb492a2fa50282d76...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:20:31.915766Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002804/manifest.jsonobserved 1c8ccec8c959e83e526eb129f376bc4c...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:20:31.902736Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002804/publication.txtobserved 5af4a8bcf77f012ba01974904f791cef...fetched by instance-3.rotem.ai from 127.0.0.1, 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 |
|---|