OT-2026-000001256
Publication integrity record
Three-dimensional target for the visual examination characterization and relative system
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-2026-000001256) never changes.
Identity and time
| Publication number | OT-2026-000001256 · never reused |
|---|---|
| Internal UUID | 01a0a674-d3db-71e4-8eb3-7e5fb92d2ed7 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:04:29.403353Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000001256 |
| Status | PUBLIC |
Content hashes
| Canonical text | 098a908a036c4cf5bd4e3758e3363447a24529702bf548845b8a73f0ec3778f1 |
|---|---|
| Markdown | f2bc736c3841f19f70346888e820469ad921fe7007e609a1f2260f8d20a2ecce |
| Publication page | 07d49fbe0a7463dab7c0e5a23b13d705ef4aeada631763ca8b9e746c73722e04 |
| Manifest | 71d2a146c762724ce6a838a2898c67a6ea3318af10fd71bddb1e51920605b85a |
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 | cEyjjQwVRcyEXWX2EoJVAgqPTkNzIBLklYOZdY4BzVAdb4aawFYS/HYUZ6nG59Z4AOxyccTba7fW2BABErn6Bw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:07:03Z batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof root 6369baadb1a246009d149835804d20ba... |
|---|
Independent retrieval
| 2026-09-16T12:41:13.978445Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001256observed 07d49fbe0a7463dab7c0e5a23b13d705...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T12:41:13.673871Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001256/manifest.jsonobserved 71d2a146c762724ce6a838a2898c67a6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T12:41:13.441942Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001256/publication.mdobserved f2bc736c3841f19f70346888e820469a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T12:41:13.152033Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001256/publication.txtobserved 098a908a036c4cf5bd4e3758e3363447...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:38.492185Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001256observed 07d49fbe0a7463dab7c0e5a23b13d705...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:38.328703Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001256/manifest.jsonobserved 71d2a146c762724ce6a838a2898c67a6...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:38.313163Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001256/publication.txtobserved 098a908a036c4cf5bd4e3758e3363447...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 |
|---|