OT-2026-000020243
Publication integrity record
Four bellows cup vacuum gripper, four zone face, pump fed, pulsed 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-2026-000020243) never changes.
Identity and time
| Publication number | OT-2026-000020243 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-4379-7335-a83d-36d4474267ce · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:22.507199Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000020243 |
| Status | PUBLIC |
Content hashes
| Canonical text | b743268e6742786997f21730a2ec974e1b58eaccb58e2c2dfb69ff9062235d6b |
|---|---|
| Markdown | ccc24f3b01487b57d56e4a310a8076482c00198e0aea7edd9ed3216b37e72c74 |
| Publication page | 04371cf6bb8a16557c0cb375e980249400802c7f837d1f53afb9fb6f519a3ccb |
| Manifest | 87caee6248215c4b92189a59aac30e2cecdfc4f8cafa64ffb856c3a75def3037 |
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 | pTFpOSY5XIgR7kgX4OT9k9FhizhuPdorTTIAySksNXAVjZm0B14RvYlwLa+jP52yNHCkqdj1DsBx4ZTqlgAEDg== |
| 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
| 2026-10-14T00:41:41.810530Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020243observed 04371cf6bb8a16557c0cb375e9802494...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-14T00:41:41.744977Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020243/manifest.jsonobserved 87caee6248215c4b92189a59aac30e2c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-14T00:41:41.659501Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020243/publication.mdobserved ccc24f3b01487b57d56e4a310a807648...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-14T00:41:41.520351Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020243/publication.txtobserved b743268e6742786997f21730a2ec974e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T08:41:39.147933Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020243observed 04371cf6bb8a16557c0cb375e9802494...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T08:41:39.063668Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020243/manifest.jsonobserved 87caee6248215c4b92189a59aac30e2c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T08:41:38.956945Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020243/publication.mdobserved ccc24f3b01487b57d56e4a310a807648...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T08:41:38.827347Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020243/publication.txtobserved b743268e6742786997f21730a2ec974e...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 |
|---|