OT-2026-000021659
Publication integrity record
Foam pad vacuum gripper, two zone face, common isolation valve, three stage ejector, 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-2026-000021659) never changes.
Identity and time
| Publication number | OT-2026-000021659 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-bb59-75b9-838c-1c6dc74b06b9 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:53.201585Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021659 |
| Status | PUBLIC |
Content hashes
| Canonical text | 18abed1e80a72a943ea1a17b0f5333fe6243c3a56920b7f9f7740464b60f256d |
|---|---|
| Markdown | 3b2bc6a055936d0b65293216e428fa72c791f0a7454689fa8b3fbc2259a1ff05 |
| Publication page | d4c470e7c6c1d8a2ec85d25458bdc1c938072a9a794dc1e68b66ae1d8787ec55 |
| Manifest | b1fb7b494518a1e4d9ee9c37002437ddcf0fe4d4c055494f6f1ec737f9c4dcfb |
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 | iSt0Mpkf45+mqnVNryLQdJfitmANPWauk/IxbItkOpz89J8v0y5t5H02WGZrAN2htAiOTrgWlmEzjeIe/OECBg== |
| 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
| 2026-10-15T00:41:03.665876Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021659observed d4c470e7c6c1d8a2ec85d25458bdc1c9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-15T00:41:03.613251Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021659/manifest.jsonobserved b1fb7b494518a1e4d9ee9c37002437dd...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-15T00:41:03.524387Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021659/publication.mdobserved 3b2bc6a055936d0b65293216e428fa72...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-15T00:41:03.397723Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021659/publication.txtobserved 18abed1e80a72a943ea1a17b0f5333fe...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T04:41:28.668377Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021659observed d4c470e7c6c1d8a2ec85d25458bdc1c9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T04:41:28.616610Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021659/manifest.jsonobserved b1fb7b494518a1e4d9ee9c37002437dd...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T04:41:28.562996Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021659/publication.mdobserved 3b2bc6a055936d0b65293216e428fa72...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T04:41:28.460635Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021659/publication.txtobserved 18abed1e80a72a943ea1a17b0f5333fe...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 |
|---|