OT-2026-000003409
Publication integrity record
Device for changing flow paths in a pneumatic conveying 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-2026-000003409) never changes.
Identity and time
| Publication number | OT-2026-000003409 · never reused |
|---|---|
| Internal UUID | 01a0a6bd-8668-7491-9934-3e04180c2488 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T20:23:53.705087Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003409 |
| Status | PUBLIC |
Content hashes
| Canonical text | 46d55b7a06633f68d6e7e0f38c82fb9d54fcda980d44823fbcc4c77e0434ea86 |
|---|---|
| Markdown | 241f853c83f2f2f50dfb2fc21b18954e77bbb1c050927d02c1f03f6df5215b79 |
| Publication page | 682f8ea79cb83f99349cef2e53bbc4c565394710decb3054a5eb41ed84dab854 |
| Manifest | 38384f5c339e4f24e976cad48543363bfd3162db5ba01b050255b816b1dfe85c |
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 | FFgRSOZBspBhni8EmHzDVUwogCjfH/jbB/6l9Yjvr4bxnlHiHnFNmF++dAmi76XVBhN6lfqUo7qc1VGggT3DDQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:27:02Z batch OT-TS-2026-W38-005 · RFC 3161 token · inclusion proof root 0d980c01ea01b2d7f69845e24a85320c... |
|---|
Independent retrieval
| 2026-09-15T20:30:08.860829Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003409observed 682f8ea79cb83f99349cef2e53bbc4c5...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:30:08.703394Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003409/manifest.jsonobserved 38384f5c339e4f24e976cad48543363b...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:08.686175Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003409/publication.txtobserved 46d55b7a06633f68d6e7e0f38c82fb9d...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 |
|---|