OT-2026-000021893
Publication integrity record
Three cup vacuum gripper, three outlet manifold, pump fed, sustained blow-off before set-down, on a tool changer
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-2026-000021893) never changes.
Identity and time
| Publication number | OT-2026-000021893 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-bb5b-7e48-ab8e-58a9439c834b · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:53.201585Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021893 |
| Status | PUBLIC |
Content hashes
| Canonical text | 04777fc5f4fefc1ef0cc6491f4d695bb057d1916dd65ea72ac48690367744211 |
|---|---|
| Markdown | 151b104913eee89ebc48f0b97fba416e6394f7b6a686097c3b1fa0baa2efe291 |
| Publication page | a85cb89fc5f6bd2056329b3d37c1f54a3da8023d11657a1f184ab83525f11eba |
| Manifest | ecc9f53fd8ad5b10847c8266c8a98250da8e6d52b55e937e59109749d1cd31f2 |
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 | PgX8jP+HwAZ/3WLBExlATKzegOVeO7UlpsOdFjkIHjEM6THkGE3wiLkecI+0nYcbN57SbHM6RBnp+K3WJSD0Ag== |
| 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
| 2026-10-31T00:41:53.076036Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021893observed a85cb89fc5f6bd2056329b3d37c1f54a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-31T00:41:53.003385Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021893/manifest.jsonobserved ecc9f53fd8ad5b10847c8266c8a98250...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T00:41:52.933915Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021893/publication.mdobserved 151b104913eee89ebc48f0b97fba416e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T00:41:52.858265Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021893/publication.txtobserved 04777fc5f4fefc1ef0cc6491f4d695bb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T12:41:02.713022Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021893observed a85cb89fc5f6bd2056329b3d37c1f54a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T12:41:02.634876Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021893/manifest.jsonobserved ecc9f53fd8ad5b10847c8266c8a98250...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T12:41:02.539531Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021893/publication.mdobserved 151b104913eee89ebc48f0b97fba416e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T12:41:02.438774Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021893/publication.txtobserved 04777fc5f4fefc1ef0cc6491f4d695bb...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 |
|---|