OT-2026-000049463
Publication integrity record
Two bellows cup vacuum gripper, two zone face, three outlet manifold, pump fed, pressure sensor per zone, pulsed blow-off before set-down
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-2026-000049463) never changes.
Identity and time
| Publication number | OT-2026-000049463 · never reused |
|---|---|
| Internal UUID | 01a0ae81-8f7c-77e6-a7a1-470273838a8e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:35:21.728203Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000049463 |
| Status | PUBLIC |
Content hashes
| Canonical text | 8f72f3b57c1f4f054ce1d811d9c460add8ce767862852cf138e078aa37d0d47d |
|---|---|
| Markdown | 89ee7a5fb5bfa2c40700798ee73a9288508f4aed4a27c45a64a364e5d647c01d |
| Publication page | 87f0a338a7856dbc9a02b4c3fa197e3fcec8f1d0af7cb2fba73820ba27d072a2 |
| Manifest | 223bc9c658362c14e473e9686203bd9295cdda7ee558abc9e13655f2e64b3014 |
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 | BxtT7L4T13aR3i0bIxWHSjTpMROlir6jYE/AQtU1VfCp0A2tn2Xm4HJRRDfkiwvAhZIgCBMdl3E8qos16SxSAA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
|---|
Independent retrieval
| 2026-10-29T00:41:33.641334Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049463observed 87f0a338a7856dbc9a02b4c3fa197e3f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-29T00:41:33.567664Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049463/manifest.jsonobserved 223bc9c658362c14e473e9686203bd92...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T00:41:33.493201Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049463/publication.mdobserved 89ee7a5fb5bfa2c40700798ee73a9288...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T00:41:33.400029Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049463/publication.txtobserved 8f72f3b57c1f4f054ce1d811d9c460ad...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T20:41:30.128445Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049463observed 87f0a338a7856dbc9a02b4c3fa197e3f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T20:41:30.026702Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049463/manifest.jsonobserved 223bc9c658362c14e473e9686203bd92...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T20:41:29.928748Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049463/publication.mdobserved 89ee7a5fb5bfa2c40700798ee73a9288...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T20:41:29.815160Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049463/publication.txtobserved 8f72f3b57c1f4f054ce1d811d9c460ad...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 |
|---|