OT-2026-000003324
Publication integrity record
Vacuum holder particulary useful as a vacuum table
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-2026-000003324) never changes.
Identity and time
| Publication number | OT-2026-000003324 · never reused |
|---|---|
| Internal UUID | 01a0a6b0-7517-7cae-b83b-4e38e92b99fa · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T20:09:37.304080Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003324 |
| Status | PUBLIC |
Content hashes
| Canonical text | 9ba39d675180ee1730f4596bbf1dc44e04eb55d6486be46996640e02e015a22c |
|---|---|
| Markdown | e27e41fbeccc34a438555024b179c49aa70c559bf463d9b9bbd83160af249ec9 |
| Publication page | 1597c7e959b7420e436ac3e914fa3cae0e5cb9d1d2699c7d939e7419e3e6350e |
| Manifest | 631b5918e0328602365c1dcdbea6cffd6c0955038f8e9733b092b11b3cef7277 |
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 | 8OYJAoCdwLIADL7jBrPMJDf0+0udNVASqGis6wpBHXW45i0hlD7Oso6yVIHjyl+FkLsNa0RDMkTaYbehLqd3Dw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:27:02Z batch OT-TS-2026-W38-005 · RFC 3161 token · inclusion proof root 0d980c01ea01b2d7f69845e24a85320c... |
|---|
Independent retrieval
| 2026-10-21T04:41:47.411437Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003324observed 1597c7e959b7420e436ac3e914fa3cae...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-21T04:41:47.315640Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003324/manifest.jsonobserved 631b5918e0328602365c1dcdbea6cffd...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T04:41:47.239903Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003324/publication.mdobserved e27e41fbeccc34a438555024b179c49a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T04:41:47.054455Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003324/publication.txtobserved 9ba39d675180ee1730f4596bbf1dc44e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:03.029531Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003324observed 1597c7e959b7420e436ac3e914fa3cae...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:03.001173Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003324/manifest.jsonobserved 631b5918e0328602365c1dcdbea6cffd...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:02.987243Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003324/publication.txtobserved 9ba39d675180ee1730f4596bbf1dc44e...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 |
|---|