OT-2026-000000044
Publication integrity record
Pneumatic Cylinder Exhaust Energy Recovery to Low-Pressure Ring Main
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-2026-000000044) never changes.
Identity and time
| Publication number | OT-2026-000000044 · never reused |
|---|---|
| Internal UUID | 01a0a672-56fb-7539-a613-22a15ae2ea70 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:01:46.366845Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000044 |
| Status | PUBLIC |
Content hashes
| Canonical text | b1a5966c34cce56465f0b2f2f549afc34effc4563f3c9b6dfd4798a43283b7ce |
|---|---|
| Markdown | 02bd19e645bc9c535f2bc3504425bd415b2a9b6ae9a358d71faadba5e2de4cbe |
| Publication page | 054a4ef882d8d9d8d4e49c59e9c4b51fbb1fc2ffc8509a33b9fda44aaf22be26 |
| Manifest | 4e3e4b11a6528ad29377b228239d6fb3fe1574e97298effea345c732b5f004c9 |
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 | 8UIM/Y+tzm+F80nWYXTwOcti79zFUhDBab7nM4uga+iRDOooZoGwuBU/YyjhAKlVooKDyaVNkVcPNkd0JnW8Cw== |
| 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
| 2026-10-26T12:41:48.233209Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000044observed 054a4ef882d8d9d8d4e49c59e9c4b51f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-26T12:41:48.188773Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000044/manifest.jsonobserved 4e3e4b11a6528ad29377b228239d6fb3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-26T12:41:48.135901Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000044/publication.mdobserved 02bd19e645bc9c535f2bc3504425bd41...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-26T12:41:47.983967Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000044/publication.txtobserved b1a5966c34cce56465f0b2f2f549afc3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:00:17.828510Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000044observed 054a4ef882d8d9d8d4e49c59e9c4b51f...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:00:17.675357Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000044/manifest.jsonobserved 4e3e4b11a6528ad29377b228239d6fb3...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:00:17.660644Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000044/publication.txtobserved b1a5966c34cce56465f0b2f2f549afc3...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 |
|---|