OT-2026-000000867
Publication integrity record
Pressure compensation systems, liquid supply systems and methods using the same
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-2026-000000867) never changes.
Identity and time
| Publication number | OT-2026-000000867 · never reused |
|---|---|
| Internal UUID | 01a0a673-efcc-76eb-8383-11da35c89365 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:31.021265Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000867 |
| Status | PUBLIC |
Content hashes
| Canonical text | 10099ee0d14ca343e88c032062abd5d49a6be63c306f77d53fe1d060164d86de |
|---|---|
| Markdown | 689884c5892346c90f06e8ffefb86c165985c67707126d91aebc388d06e11300 |
| Publication page | 53999716c797fd4d74d5096ed35429c1de1dd0ea041bfac7dc6a5d43f626acd0 |
| Manifest | 7d413df380aa66925fbbceff481a9c504972d1e245f7e2651ba91efbb3d25820 |
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 | h6quN8uYqSznRw+Dba4EKBPyn+WpCe5dqkG+9nEebFW5I4HF2uKWaBvLCcEgkhikVYUIY32OiUoYPl8mLzQKDg== |
| 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
| 2026-10-21T12:41:45.802251Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000867observed 53999716c797fd4d74d5096ed35429c1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-21T12:41:45.730782Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000867/manifest.jsonobserved 7d413df380aa66925fbbceff481a9c50...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T12:41:45.657966Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000867/publication.mdobserved 689884c5892346c90f06e8ffefb86c16...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T12:41:45.486255Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000867/publication.txtobserved 10099ee0d14ca343e88c032062abd5d4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:25.887668Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000867observed 53999716c797fd4d74d5096ed35429c1...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:25.858627Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000867/manifest.jsonobserved 7d413df380aa66925fbbceff481a9c50...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:25.721956Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000867/publication.txtobserved 10099ee0d14ca343e88c032062abd5d4...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 |
|---|