OT-2026-000003202
Publication integrity record
Vacuum adherent face mask
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-2026-000003202) never changes.
Identity and time
| Publication number | OT-2026-000003202 · never reused |
|---|---|
| Internal UUID | 01a0a69d-3287-7721-b164-181720c1fe55 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:48:35.080237Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003202 |
| Status | PUBLIC |
Content hashes
| Canonical text | 3f039aba519c9d69068a64afa5e01f809edba4aec1b2adeae13fe70afd77e0db |
|---|---|
| Markdown | 832a7cf711f52d4e25a65701c1a72648528bef7c09df64b3c1bc50afc2aad001 |
| Publication page | 77f68c7fc6db87d3c34c15c65e2d521795a27bbbbf89a8a7ed2a4536a720becd |
| Manifest | a31076f74e21571328bada7ee37bc9fe09c0deeb018384a38e9b1e348f1ba317 |
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 | aJExRPiAJhhlZrSEh/ZaTDq11vjLAF4EUFAoMMq848f6XF5pgNS/yRiwQPZYxY5l0viOb9Bq7xYzoz1tFqJ1BA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:07:03Z batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof root d42f3e627490c26ffd144bf37543fecf... |
|---|
Independent retrieval
| 2026-10-11T16:41:06.676474Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003202observed 77f68c7fc6db87d3c34c15c65e2d5217...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-11T16:41:06.521127Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003202/manifest.jsonobserved a31076f74e21571328bada7ee37bc9fe...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T16:41:06.432474Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003202/publication.mdobserved 832a7cf711f52d4e25a65701c1a72648...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T16:41:06.227254Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003202/publication.txtobserved 3f039aba519c9d69068a64afa5e01f80...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T04:41:31.405773Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003202observed 77f68c7fc6db87d3c34c15c65e2d5217...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T04:41:31.273357Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003202/manifest.jsonobserved a31076f74e21571328bada7ee37bc9fe...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T04:41:31.113155Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003202/publication.mdobserved 832a7cf711f52d4e25a65701c1a72648...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T04:41:30.712744Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003202/publication.txtobserved 3f039aba519c9d69068a64afa5e01f80...fetched by grabo-systems from 34.44.131.203, 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 |
|---|