OT-2026-000002139
Publication integrity record
Ceiling storage system and control method thereof
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-2026-000002139) never changes.
Identity and time
| Publication number | OT-2026-000002139 · never reused |
|---|---|
| Internal UUID | 01a0a67a-d4f6-7141-9748-55a6642ae758 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:11:02.903230Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002139 |
| Status | PUBLIC |
Content hashes
| Canonical text | 6cf8faa07c872941ed65c8a52c7fd8cf3b56d61e766f93fb80f0ededa011225b |
|---|---|
| Markdown | 88a8760d1e80ec3c0826108a6c26470a00fe6d319aeb72be7494bed072416b25 |
| Publication page | b2a6e175be25e560f19ba1feec83b92d2de9b5d8fa8dca4f7951d118a330e45b |
| Manifest | 8742e67952c0d12d982186f1ed625350f8da716362b0f7eea7c36b02f54e27fc |
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 | WEMUqXF0i5tnHCtZN7v6/ZLZZiws6PO3kkmlOZveYesO9o0jRtbiGhGQQjMXpHI80yjmV0+zEOPduDWuo+0SBA== |
| 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
| 2026-09-15T19:50:21.075435Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002139observed b2a6e175be25e560f19ba1feec83b92d...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:50:20.924775Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002139/manifest.jsonobserved 8742e67952c0d12d982186f1ed625350...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:20.911312Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002139/publication.txtobserved 6cf8faa07c872941ed65c8a52c7fd8cf...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 |
|---|