OT-2026-000002412
Publication integrity record
Techniques for powder delivery in additive fabrication and related systems and methods
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-2026-000002412) never changes.
Identity and time
| Publication number | OT-2026-000002412 · never reused |
|---|---|
| Internal UUID | 01a0a67c-73c3-7256-ab6e-15bfaf27d169 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:12:49.092013Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002412 |
| Status | PUBLIC |
Content hashes
| Canonical text | 04d5199497470a1f84fc222a570c3e535d58728b194194858f495cbb7698f5dd |
|---|---|
| Markdown | f5b35f0f1df74904df93b5749c1d3e088ad5dedf55cf025d57bda7ce133927ae |
| Publication page | 97f3a67f638164fb3ea143b0fecd85e0fda4b59c630d195b81af4ab85f66ee2e |
| Manifest | b630534d54ecffba0bb42dbbb1ccc1606f2a31d3d513a7c770e56de3281be188 |
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 | RJ2/f0OyYtCQXOtIeewXEIJkhCuI+35uxU6HpTkWAkx4CnXR04nlXlgMIDzLEXXpfQXnEsQnncwfKGJWkDIiAA== |
| 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
| 2026-10-23T12:41:57.137942Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002412observed 97f3a67f638164fb3ea143b0fecd85e0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-23T12:41:57.074549Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002412/manifest.jsonobserved b630534d54ecffba0bb42dbbb1ccc160...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T12:41:57.009560Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002412/publication.mdobserved f5b35f0f1df74904df93b5749c1d3e08...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T12:41:56.915021Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002412/publication.txtobserved 04d5199497470a1f84fc222a570c3e53...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:12:27.737563Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002412observed 97f3a67f638164fb3ea143b0fecd85e0...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:12:27.725462Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002412/manifest.jsonobserved b630534d54ecffba0bb42dbbb1ccc160...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:12:27.712047Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002412/publication.mdobserved f5b35f0f1df74904df93b5749c1d3e08...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:12:27.697297Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002412/publication.txtobserved 04d5199497470a1f84fc222a570c3e53...fetched by instance-3.rotem.ai from 34.69.0.72, 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 |
|---|