OT-2026-000052469
Publication integrity record
Single cup vacuum gripper, common isolation valve, pump fed, vented 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-2026-000052469) never changes.
Identity and time
| Publication number | OT-2026-000052469 · never reused |
|---|---|
| Internal UUID | 01a0ae84-573a-7bb8-badf-84b89becc325 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:38:23.819394Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000052469 |
| Status | PUBLIC |
Content hashes
| Canonical text | d94c51b456df7ca03901564449f667177a5ad6bec908c169d1deb2fe246fb68d |
|---|---|
| Markdown | 3fb49b887953c437c0a2d25a1f9cc7fec0c230198d155611d84645dffcc3c2ad |
| Publication page | 6548318ed8259d963f6108f5c6747e347d40600aec2f07a9b44f8b08f6d4eac9 |
| Manifest | 16d995bb4bf9225e3f16254290205ff3b09d004da40e2611a3aabe6cdaa88a27 |
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 | X01Vck/wOAec9bTMv/kL8jKgKfsRM0Q5HlGLVrNKERfjNNjEq4QUwrAEIMlhwKFUf/wtRa4pZI5m56zgMldtCQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:47:04Z batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof root 954df3475fbcfbe27467725cfb2ec919... |
|---|---|
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
Independent retrieval
| 2026-10-10T12:42:17.917100Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052469observed 6548318ed8259d963f6108f5c6747e34...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-10T12:42:17.837410Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052469/manifest.jsonobserved 16d995bb4bf9225e3f16254290205ff3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-10T12:42:17.748612Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052469/publication.mdobserved 3fb49b887953c437c0a2d25a1f9cc7fe...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-10T12:42:17.619546Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052469/publication.txtobserved d94c51b456df7ca03901564449f66717...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T20:41:49.975074Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052469observed 6548318ed8259d963f6108f5c6747e34...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T20:41:49.910560Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052469/manifest.jsonobserved 16d995bb4bf9225e3f16254290205ff3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T20:41:49.856178Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052469/publication.mdobserved 3fb49b887953c437c0a2d25a1f9cc7fe...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T20:41:49.786752Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000052469/publication.txtobserved d94c51b456df7ca03901564449f66717...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 |
|---|