OT-2026-000000045
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-2026-000000045) never changes.
Identity and time
| Publication number | OT-2026-000000045 · never reused |
|---|---|
| Internal UUID | 01a0a4e3-73cd-7382-9414-394f1c492fd0 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T11:46:04.879665Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000045 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7a0c39363bdf3b698753c00da0560052d916663ef2e2c7295c1c33b83222dce1 |
|---|---|
| Markdown | db708d4541c4192803f9de52d853e534fc7d5652e0f5507f0b2ec7b3560ccd07 |
| 3da2282527154283bb48d9f0991ed409bd7b0301684e069b8a0bafa3036c700f | |
| Publication page | 29645a3938bf630186523c836d78932a0c00daa23b7d3e225e10fe406c8afad9 |
| Manifest | be23058ebb4fb9d82294823c28184d178c9ea577279c15586cd497412501a7d0 |
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-2026-02 · Verified |
|---|---|
| Signature | U6Da/ntHam4N1yzoApQrKuR4mjSw9yphUqjr/Bt+8y0Pl0sxFMaEErJH59QyGJzSKbYEQ0MeiWLVb1pYd4mfDg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T11:47:01Z batch OT-TS-2026-W38-003 · RFC 3161 token · inclusion proof root 9563dce58556d06689dcee7fb61d5c87... |
|---|
Independent retrieval
| 2026-09-15T12:41:41.258172Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000045observed 29645a3938bf630186523c836d78932a...fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T12:41:41.102181Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000045/publication.pdfobserved 3da2282527154283bb48d9f0991ed409...fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T12:41:40.975710Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000045/manifest.jsonobserved be23058ebb4fb9d82294823c28184d17...fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T12:41:40.845404Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000045/publication.txtobserved 7a0c39363bdf3b698753c00da0560052...fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T11:50:02.976104Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000045observed 29645a3938bf630186523c836d78932a...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T11:50:02.952593Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000045/publication.pdfobserved 3da2282527154283bb48d9f0991ed409...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T11:50:02.935977Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000045/manifest.jsonobserved be23058ebb4fb9d82294823c28184d17...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T11:50:02.912972Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000045/publication.txtobserved 7a0c39363bdf3b698753c00da0560052...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.zstf5540ade9ee87306569c02456843c15d... · 9,431,008 bytes · held by held on site pending an external custodian · retention permanent |
|---|