OT-2026-000001844
Publication integrity record
Apparatus and method for gripping, lifting and inverting foam sheet
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-2026-000001844) never changes.
Identity and time
| Publication number | OT-2026-000001844 · never reused |
|---|---|
| Internal UUID | 01a0a678-f73d-7478-ad3e-012a8d2a9213 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:09:00.606058Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000001844 |
| Status | PUBLIC |
Content hashes
| Canonical text | a2c41aaa6c26bff970d29a1e9ca7b1cb7c33b06eecf5c1a099a7aae54cafb912 |
|---|---|
| Markdown | 0df8631e7729b61c85c16c0836073e89820e6797b99243c60149c616e15a2366 |
| Publication page | 9ab25e1feb705dcc755010bcb7d641b1dcc44f6a2aa6bfb2d3e74a9cbc4e4fdd |
| Manifest | 2f35e9118559560568582e1709d668a8cb7cf825467c040f859f1b537a9e5491 |
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 | kqvUYvOZ/Rodj7kT1u+c0L+ztWOL7dKFXJi5CquXEkhRqsopfjWrzQNSfHHDDGwNKbeEKdatAVcSIpxCefZLCg== |
| 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
| 2026-09-19T16:43:32.841369Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001844observed 9ab25e1feb705dcc755010bcb7d641b1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-19T16:43:32.594920Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001844/manifest.jsonobserved 2f35e9118559560568582e1709d668a8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T16:43:32.238731Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001844/publication.mdobserved 0df8631e7729b61c85c16c0836073e89...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T16:43:31.847979Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001844/publication.txtobserved a2c41aaa6c26bff970d29a1e9ca7b1cb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:10:19.444127Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001844observed 9ab25e1feb705dcc755010bcb7d641b1...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:10:19.415450Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001844/manifest.jsonobserved 2f35e9118559560568582e1709d668a8...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:10:19.402205Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001844/publication.txtobserved a2c41aaa6c26bff970d29a1e9ca7b1cb...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 |
|---|