OT-2026-000072278
Publication integrity record
Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, vented 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-2026-000072278) never changes.
Identity and time
| Publication number | OT-2026-000072278 · never reused |
|---|---|
| Internal UUID | 01a0ae92-47c3-7a05-bcb5-a30be31f5305 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:53:37.365346Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000072278 |
| Status | PUBLIC |
Content hashes
| Canonical text | cbf83011fee0ef14943028c85f637e127a086083562e9f978571d3d0fc1b8acf |
|---|---|
| Markdown | 49f741d96ee99d0c9d845f3dc2abfe5411897538c6add87fdd55b01ee2852c36 |
| Publication page | ade015db521b72a3cd54ca63c5e52757158b0433561a49f0272f1c60d5b7376d |
| Manifest | 66765cc0172ebd6dfb2c3fdce95c0db77dd30c7962ce47b1a837a619df37ca49 |
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 | bn76qXO0STrkuh61IbBVV+ZQW51o2redMfKGKkfVJ9SqNR/QFop4u0fQPl/kvE0PUcukSP7q9IHD5Y7MIpIRCQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:07:03Z batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof root 061e9ae86cc297cdce873398aaec3f72... |
|---|
Independent retrieval
| 2026-10-21T00:41:55.292030Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072278observed ade015db521b72a3cd54ca63c5e52757...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-21T00:41:55.204558Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072278/manifest.jsonobserved 66765cc0172ebd6dfb2c3fdce95c0db7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T00:41:55.116566Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072278/publication.mdobserved 49f741d96ee99d0c9d845f3dc2abfe54...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T00:41:54.996625Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072278/publication.txtobserved cbf83011fee0ef14943028c85f637e12...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T16:41:34.778610Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072278observed ade015db521b72a3cd54ca63c5e52757...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T16:41:34.727933Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072278/manifest.jsonobserved 66765cc0172ebd6dfb2c3fdce95c0db7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T16:41:34.679519Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072278/publication.mdobserved 49f741d96ee99d0c9d845f3dc2abfe54...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T16:41:34.624709Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072278/publication.txtobserved cbf83011fee0ef14943028c85f637e12...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 |
|---|