OT-2026-000002193
Publication integrity record
Cassette grader and method
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-2026-000002193) never changes.
Identity and time
| Publication number | OT-2026-000002193 · never reused |
|---|---|
| Internal UUID | 01a0a67b-231a-7b4c-8f8f-f8394b632b6c · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:11:22.906788Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002193 |
| Status | PUBLIC |
Content hashes
| Canonical text | cefb00a8bb456e395d5523c63f0e2c7afcae7493ab25d4cf36eff30f8b3a6c45 |
|---|---|
| Markdown | dc9bb9f6c1df756b17c4bef07faab6bf123d2be3136af9d69fe77eaafdcb98b5 |
| Publication page | b29497604e41c8c0331c64b0d2a0051bab1928b1f21aa45054aff69ee3b0991e |
| Manifest | e54f971b4c50ce70c68ce78d4b8549dd846cf03429306b88df8d35f667a51068 |
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 | vJGFRL8Rx6P/BELh5vgxskOa/9ESsXy9Fg8pCU/8MoYgZCgtNKFQhy7j/wcWM3E4n8ly3oIqsUOkVbinIDFaCw== |
| 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
| 2026-09-17T00:42:32.219933Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002193observed b29497604e41c8c0331c64b0d2a0051b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T00:42:32.003835Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002193/manifest.jsonobserved e54f971b4c50ce70c68ce78d4b8549dd...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T00:42:31.902989Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002193/publication.mdobserved dc9bb9f6c1df756b17c4bef07faab6bf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T00:42:31.749466Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002193/publication.txtobserved cefb00a8bb456e395d5523c63f0e2c7a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:15.111782Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002193observed b29497604e41c8c0331c64b0d2a0051b...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:15.082036Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002193/manifest.jsonobserved e54f971b4c50ce70c68ce78d4b8549dd...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:15.067218Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002193/publication.txtobserved cefb00a8bb456e395d5523c63f0e2c7a...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 |
|---|