OT-2026-000011857
Publication integrity record
Two finger pneumatic gripper, stripped after 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-2026-000011857) never changes.
Identity and time
| Publication number | OT-2026-000011857 · never reused |
|---|---|
| Internal UUID | 01a0ae6d-1941-70ef-920f-da198f068d19 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:13:00.631271Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000011857 |
| Status | PUBLIC |
Content hashes
| Canonical text | 34ee25bf0bc4be17badde055fdad6b9c656f414351fde58706488836e135ab94 |
|---|---|
| Markdown | c99f2970bfe929fa515212bb48ee56fbdb173cc8f3d4fccff55c37089d6811a2 |
| Publication page | 79d7981c4e32211a6160ff6d944268b4a862fddd61ae14803bf3cb911a660c3a |
| Manifest | c1ff10fd8fb52cd3c4e4484a4d69b5376f00e496c5cfe9900f420c6d682da02c |
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 | dCEdal4ZbgfC/BTviFC5aj53ZrOshdnxL7lBeK0QKcGCt0gcFkuR65V4Pb0mmFH41I3iD2NP3QAsJSNYl86sBw== |
| 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
| 2026-10-11T16:41:47.627259Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011857observed 79d7981c4e32211a6160ff6d944268b4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-11T16:41:47.546134Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011857/manifest.jsonobserved c1ff10fd8fb52cd3c4e4484a4d69b537...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T16:41:47.461096Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011857/publication.mdobserved c99f2970bfe929fa515212bb48ee56fb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T16:41:47.336863Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011857/publication.txtobserved 34ee25bf0bc4be17badde055fdad6b9c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T12:41:11.101784Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011857observed 79d7981c4e32211a6160ff6d944268b4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T12:41:11.040559Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011857/manifest.jsonobserved c1ff10fd8fb52cd3c4e4484a4d69b537...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T12:41:10.974596Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011857/publication.mdobserved c99f2970bfe929fa515212bb48ee56fb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T12:41:10.907566Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011857/publication.txtobserved 34ee25bf0bc4be17badde055fdad6b9c...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 |
|---|