OT-2026-000028093
Publication integrity record
Two cup vacuum gripper, two outlet manifold, two stage ejector, manifold pressure sensor, sustained 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-2026-000028093) never changes.
Identity and time
| Publication number | OT-2026-000028093 · never reused |
|---|---|
| Internal UUID | 01a0ae72-a520-7c0b-a078-31b8f1d9bbcf · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:04.113553Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028093 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7af0a4797acfe7767ef9bb5e74c57f6287a2cd4abe6b537d2ff4c1450af6f67a |
|---|---|
| Markdown | b60b812a581207270a277c0072292ab4354299312db71412edf48bbdc1fe837b |
| Publication page | db11f4d34e8e7bea3ecf6daf951cb695829ad365f2137a75b8431eaf99859d8f |
| Manifest | 82bf26a1ecb49595dcec68f0c5b6e2369a2927ca5653281fbd83ec8b55b0d611 |
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 | /k1AnTK6HRn/Fdu8LDEEBmBHtqBwHVUTTAqFfWapTpIfYw5vZb5lFU9cSvMRDV02B9rEU5v0J05wd8BL0Y3tAA== |
| 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
| 2026-10-29T04:41:07.978881Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028093observed db11f4d34e8e7bea3ecf6daf951cb695...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-29T04:41:07.887111Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028093/manifest.jsonobserved 82bf26a1ecb49595dcec68f0c5b6e236...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T04:41:07.817317Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028093/publication.mdobserved b60b812a581207270a277c0072292ab4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T04:41:07.727247Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028093/publication.txtobserved 7af0a4797acfe7767ef9bb5e74c57f62...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-29T16:41:09.239879Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028093observed db11f4d34e8e7bea3ecf6daf951cb695...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-29T16:41:09.130214Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028093/manifest.jsonobserved 82bf26a1ecb49595dcec68f0c5b6e236...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-29T16:41:09.070221Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028093/publication.mdobserved b60b812a581207270a277c0072292ab4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-29T16:41:09.006185Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028093/publication.txtobserved 7af0a4797acfe7767ef9bb5e74c57f62...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 |
|---|