OT-2026-000000289
Publication integrity record
Manufacturing assistance system for an additive manufacturing 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-2026-000000289) never changes.
Identity and time
| Publication number | OT-2026-000000289 · never reused |
|---|---|
| Internal UUID | 01a0a673-31f1-7775-87e7-2a4fb039065c · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:42.417588Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000289 |
| Status | PUBLIC |
Content hashes
| Canonical text | bc447da28744f409f63b3032cc8bdc498228d0a05aa05a247d11382b4b4e6ec8 |
|---|---|
| Markdown | 3b594221f107752159effe514384668e45a9bdd613c56f9c9f21fdc764ffeb67 |
| Publication page | 1165cd76bcc3c8ee7f01d82fe488a529369998379b1065737702b7898cb3d560 |
| Manifest | 19cd3e4510dbe214203755f1094ac044697bdcb4239694ed5fdf4c8da137efba |
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 | YJMRgZezRfw12bieGvxXR4wItmTwhSv2PO8CB6CBsb8/+sVNgWj2ftWOXOFgGVw/Wlcj75j5IZJR/W2QU1RWBA== |
| 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
| 2026-10-16T00:41:43.331111Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000289observed 1165cd76bcc3c8ee7f01d82fe488a529...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-16T00:41:43.235392Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000289/manifest.jsonobserved 19cd3e4510dbe214203755f1094ac044...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-16T00:41:43.148110Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000289/publication.mdobserved 3b594221f107752159effe514384668e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-16T00:41:42.954254Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000289/publication.txtobserved bc447da28744f409f63b3032cc8bdc49...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-12T04:42:00.371106Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000289observed 1165cd76bcc3c8ee7f01d82fe488a529...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-12T04:42:00.291395Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000289/manifest.jsonobserved 19cd3e4510dbe214203755f1094ac044...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-12T04:42:00.217004Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000289/publication.mdobserved 3b594221f107752159effe514384668e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-12T04:41:59.910295Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000289/publication.txtobserved bc447da28744f409f63b3032cc8bdc49...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 |
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