OT-2026-000001464
Publication integrity record
Variable hydraulic pressure relief systems and methods for a material handling device
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-2026-000001464) never changes.
Identity and time
| Publication number | OT-2026-000001464 · never reused |
|---|---|
| Internal UUID | 01a0a676-3574-75de-b3c2-85f593c64692 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:05:59.925334Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000001464 |
| Status | PUBLIC |
Content hashes
| Canonical text | e177f84975fc644b4b3ee75aff1208f2d757bc66992247725c404c4d2cd29c7a |
|---|---|
| Markdown | c4fc83f8753100927e459b669ddaa68aea9b45d3c2a3a4c90b02989875debd3c |
| Publication page | b18e46ab4da2aa12dedc1212682553599fa16128fd120e008b091f9d433b88ad |
| Manifest | 9a91aabfdac782e7f5539a1371c5cc221f7e8392f31178fabdb25298cfe451ce |
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 | SXjRKE4ckMoupAI6vTn4SmjJSOrRrzmrmkpvbgc4jIR03An1MBt7Y8KrbU2vBibjO/GUdf25ltFdTJ/6A2cuCA== |
| 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
| 2026-10-04T20:41:50.918920Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001464observed b18e46ab4da2aa12dedc121268255359...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-04T20:41:50.849587Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001464/manifest.jsonobserved 9a91aabfdac782e7f5539a1371c5cc22...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T20:41:50.780362Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001464/publication.mdobserved c4fc83f8753100927e459b669ddaa68a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T20:41:50.614734Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001464/publication.txtobserved e177f84975fc644b4b3ee75aff1208f2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:12.713604Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001464observed b18e46ab4da2aa12dedc121268255359...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:12.554419Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001464/manifest.jsonobserved 9a91aabfdac782e7f5539a1371c5cc22...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:12.537644Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001464/publication.txtobserved e177f84975fc644b4b3ee75aff1208f2...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 |
|---|