OT-2026-000001521
Publication integrity record
Robot end effector, industrial robot, and method for gripping and welding an elongated workpiece using a robot end effector
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-2026-000001521) never changes.
Identity and time
| Publication number | OT-2026-000001521 · never reused |
|---|---|
| Internal UUID | 01a0a676-96fd-7ae6-827f-6b762e9fe3db · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:06:24.893493Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000001521 |
| Status | PUBLIC |
Content hashes
| Canonical text | 820d72975fd8fe76343664c14f292cfa4e1bda63e34f2312ff2032f5459ad00e |
|---|---|
| Markdown | d2a1cb3e7720b72687b14946b742b2e01d8ab9f0d3cfd6d468520568292183bf |
| Publication page | 4311b0f2d53a97d9fba3715986fe53263be2e222222e5af3ba6acabd7dd41f61 |
| Manifest | 60c8e2039b7e30506060276bd3ec128e5f0326ebc4d14c13aa265ed8ce1724d6 |
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 | CJ4fgVR7tBkI2cnr1Df3qhEPX3zlMRj1d8StDNncIil7nlehLBfTaDCKuB/weGxHZ4DoGE3FxJFUYioV/xwLBQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:07:03Z batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof root 6369baadb1a246009d149835804d20ba... |
|---|
Independent retrieval
| 2026-09-15T20:00:34.888596Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001521observed 4311b0f2d53a97d9fba3715986fe5326...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:00:34.731726Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001521/manifest.jsonobserved 60c8e2039b7e30506060276bd3ec128e...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:00:34.713169Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001521/publication.txtobserved 820d72975fd8fe76343664c14f292cfa...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 |
|---|