OT-2026-000004027
Publication integrity record
Bellows cup vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, pressure verified
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-2026-000004027) never changes.
Identity and time
| Publication number | OT-2026-000004027 · never reused |
|---|---|
| Internal UUID | 01a0a90c-ed9a-78fe-9f53-dcbf29ffa3ad · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:09:51.901446Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004027 |
| Status | PUBLIC |
Content hashes
| Canonical text | 815d503b229653f8f6e5ce6b0c9125b226e5535a5a091b147ac2fb0e305d3eeb |
|---|---|
| Markdown | f604741ccbf922a3fbb771ca2fffbc87cffde3dc68e3c07aabc184cb934d2f99 |
| Publication page | fff56dfe8562816a5aa0d7e7dd9b59a268f915497faee360af6067bb24267a35 |
| Manifest | df97800c9a4d0c375ec234aa5f2b4e0926dae570114e4769b1ad7e262e71e9e8 |
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 | sSN2Htr2V+SjbfRs5wr7mYnIpxFBQjBIJqR6iD5GgKu0XNsQQ82bbEkDfIePj0hD/DVvHyHNxA/cCpShSrEUCA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:27:02Z batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof root aada101caea153fd76622afa3661a5b8... |
|---|
Independent retrieval
| 2026-10-22T16:41:49.548447Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004027observed fff56dfe8562816a5aa0d7e7dd9b59a2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-22T16:41:49.498051Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004027/manifest.jsonobserved df97800c9a4d0c375ec234aa5f2b4e09...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T16:41:49.445724Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004027/publication.mdobserved f604741ccbf922a3fbb771ca2fffbc87...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T16:41:49.298617Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004027/publication.txtobserved 815d503b229653f8f6e5ce6b0c9125b2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T08:42:00.554741Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004027observed fff56dfe8562816a5aa0d7e7dd9b59a2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T08:42:00.339774Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004027/manifest.jsonobserved df97800c9a4d0c375ec234aa5f2b4e09...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T08:41:59.996090Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004027/publication.mdobserved f604741ccbf922a3fbb771ca2fffbc87...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T08:41:59.690934Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004027/publication.txtobserved 815d503b229653f8f6e5ce6b0c9125b2...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 |
|---|