OT-2026-000019405
Publication integrity record
Single cup vacuum gripper, pump fed, supply line pressure sensor, 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-2026-000019405) never changes.
Identity and time
| Publication number | OT-2026-000019405 · never reused |
|---|---|
| Internal UUID | 01a0ae6e-f393-78be-8434-ae66a465df44 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:02.050431Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000019405 |
| Status | PUBLIC |
Content hashes
| Canonical text | d0639086e08d455dd8428e62ab9e734dd44da920d508ccd5bc54a9f1049f4671 |
|---|---|
| Markdown | 7691f58bbf9523c423965f656d20d10aa28fb3519fc38a80796a24d562262342 |
| Publication page | d45bd0ff8a84f68cba6d8a91c9d35885608c2a2397d7cc1b57cd9bc7aa3ff29d |
| Manifest | 5ded623a576d8a80ea49c7b8c29e7f0641fc7bd0981ec2809999098e65c678ba |
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 | fgmsbwaSPUhOdwq4iamqdTpK2151VoUJgRvsyYN6wGKBILvzCfHFsJ4qK75veMMJS3knLs3maICESEPd/MEOAw== |
| 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
| 2026-10-07T00:42:10.434472Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019405observed d45bd0ff8a84f68cba6d8a91c9d35885...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-07T00:42:10.264636Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019405/manifest.jsonobserved 5ded623a576d8a80ea49c7b8c29e7f06...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T00:42:10.056068Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019405/publication.mdobserved 7691f58bbf9523c423965f656d20d10a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T00:42:09.811092Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019405/publication.txtobserved d0639086e08d455dd8428e62ab9e734d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T12:41:04.350446Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019405observed d45bd0ff8a84f68cba6d8a91c9d35885...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T12:41:04.288041Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019405/manifest.jsonobserved 5ded623a576d8a80ea49c7b8c29e7f06...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T12:41:04.240208Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019405/publication.mdobserved 7691f58bbf9523c423965f656d20d10a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T12:41:04.180854Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019405/publication.txtobserved d0639086e08d455dd8428e62ab9e734d...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 |
|---|