OT-2026-000002648
Publication integrity record
Working cylinder, in particular a hydraulic working cylinder
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-2026-000002648) never changes.
Identity and time
| Publication number | OT-2026-000002648 · never reused |
|---|---|
| Internal UUID | 01a0a67d-edc1-78ff-81ff-bb0a4eccc385 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:14:25.857629Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002648 |
| Status | PUBLIC |
Content hashes
| Canonical text | a073a03bdca5fc8959da4963c90cf002eae8ffdeae8068dfe9563bb20c559a1d |
|---|---|
| Markdown | 5f03fb8bbf7283290072e7cfab29b6c0beb9f569206b64c796b33559fa9ccc9a |
| Publication page | f9547aa3f9847dd5ee4b413f23e265fad6e0193c5f51c107f7f6472f1c92fccf |
| Manifest | b97b1519f88bdf531dc425c654efd02221db5ee4fda9b44b995c9ffe8496ad0a |
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 | iIDzzIxOayHxeGjThx85uGtEtUxYL0reANUMFTm2dcR4B1UsMyDlLOVXFovUpc4EVdyvc4DV0QAH2GVhretiCg== |
| 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
| 2026-09-16T04:43:00.324177Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002648observed f9547aa3f9847dd5ee4b413f23e265fa...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T04:43:00.053055Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002648/manifest.jsonobserved b97b1519f88bdf531dc425c654efd022...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:42:59.650810Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002648/publication.mdobserved 5f03fb8bbf7283290072e7cfab29b6c0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:42:59.342809Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002648/publication.txtobserved a073a03bdca5fc8959da4963c90cf002...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:30:21.194165Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002648observed f9547aa3f9847dd5ee4b413f23e265fa...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:30:21.159137Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002648/manifest.jsonobserved b97b1519f88bdf531dc425c654efd022...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:30:21.145945Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002648/publication.txtobserved a073a03bdca5fc8959da4963c90cf002...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 |
|---|