OT-2026-000003219
Publication integrity record
Flexible vacuum pick-up device
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-2026-000003219) never changes.
Identity and time
| Publication number | OT-2026-000003219 · never reused |
|---|---|
| Internal UUID | 01a0a69f-cda2-7a2b-ad83-a7f7d837eb76 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:51:25.858801Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003219 |
| Status | PUBLIC |
Content hashes
| Canonical text | ef6a898bf312fbd965adf24321b6f2db176454b238ae03a3f440eecb71b8e5d5 |
|---|---|
| Markdown | 166537310681bd4a127b76e8f176362ef4e6497a1d0c71124d2ae33b9fbb4420 |
| Publication page | bae85af5245787bf8c3376f870494f4574b0c941d2f7c5c036f63cc78fc47db4 |
| Manifest | e81cde3ec3b517702af10376ad3dbac828b4266ab2aea1694f50307f82f915c1 |
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 | 8Xq5Msi0RHVdHGYkYUyv8rwGsPYIEZCFDWcTANZrCX+wCZEdgKmwvLBYwiv3K298CJmpXKT7oMTvJD6nQ3yyAg== |
| 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... |
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Independent retrieval
| 2026-09-17T04:23:16.687651Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003219observed bae85af5245787bf8c3376f870494f45...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T04:23:16.672276Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003219/manifest.jsonobserved e81cde3ec3b517702af10376ad3dbac8...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:23:16.657866Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003219/publication.mdobserved 166537310681bd4a127b76e8f176362e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:23:16.617484Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003219/publication.txtobserved ef6a898bf312fbd965adf24321b6f2db...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:00:09.669009Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003219observed bae85af5245787bf8c3376f870494f45...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:00:09.638150Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003219/manifest.jsonobserved e81cde3ec3b517702af10376ad3dbac8...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:00:09.503036Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003219/publication.txtobserved ef6a898bf312fbd965adf24321b6f2db...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 |
|---|