OT-2026-000001710
Publication integrity record
Special-purpose valve core removal tool
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-2026-000001710) never changes.
Identity and time
| Publication number | OT-2026-000001710 · never reused |
|---|---|
| Internal UUID | 01a0a677-e7d2-7429-b0a9-ce18b2ba151f · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:07:51.122836Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000001710 |
| Status | PUBLIC |
Content hashes
| Canonical text | 4cfb32cd8255b2935153b734e701eccfc41aac77876fb51c89b84c1a9af57998 |
|---|---|
| Markdown | 176212480da8450cfc44470088022477c6308110f9ae3554c6787c1f3cf06200 |
| Publication page | 91c51027672b9013e59ceae3b43a9319a3c4a1c28824569edc253b68c9b15111 |
| Manifest | 82bb84433315eeefe8e1de3fede30af50dd697282213abfea358ba85064e761c |
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 | HhXHOqVkj7PiEglwMWzT8LdUw5yqfNjsm7fAK+lrHhWDTn0i0fzaSFspxxfAiu88VghrEYaHWKQF2wpI2FwnCw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:27:02Z batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof root 2d7e364e718bd6a32072ec57f9edc195... |
|---|
Independent retrieval
| 2026-09-15T19:10:34.365413Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001710observed 91c51027672b9013e59ceae3b43a9319...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:10:34.332975Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001710/manifest.jsonobserved 82bb84433315eeefe8e1de3fede30af5...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:10:34.195241Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001710/publication.txtobserved 4cfb32cd8255b2935153b734e701eccf...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 |
|---|