OT-2026-000002871
Publication integrity record
Systems and methods for grasping and placing multiple objects with a robotic gripper
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-2026-000002871) never changes.
Identity and time
| Publication number | OT-2026-000002871 · never reused |
|---|---|
| Internal UUID | 01a0a67f-44cf-7c85-9cae-2af88372c83f · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:15:53.679579Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002871 |
| Status | PUBLIC |
Content hashes
| Canonical text | 1efe5e29cacb127a4ae16c8cd92c7d91cf3847cff1733f3828ef2998a639e921 |
|---|---|
| Markdown | 6e23d303b85fce2df8b05047652cd96ce4510a495e55f1885a6f473ec16af99e |
| Publication page | 0232cb1080087ff113cf26654c9badd5e4fe8a1eaf98d5f374dcffe30f0930d1 |
| Manifest | d444b8684465c499e62980f32d5ef088068650746de2901181a15c7e2b9086fc |
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 | Q/Ii3UNd0U0l4DVcP6l+sPdSD/xeCiofLnDtT8wWsNqhcXfL6vs34VvQXpX4ZdGDliGOkZ73FvQxO3tvaCWiAw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:27:02Z batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof root 2d7e364e718bd6a32072ec57f9edc195... |
|---|
Independent retrieval
| 2026-09-15T19:20:24.422423Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002871observed 0232cb1080087ff113cf26654c9badd5...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:20:24.396870Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002871/manifest.jsonobserved d444b8684465c499e62980f32d5ef088...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:20:24.383569Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002871/publication.txtobserved 1efe5e29cacb127a4ae16c8cd92c7d91...fetched by instance-3.rotem.ai from 127.0.0.1, 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 |
|---|