OT-2026-000004540
Publication integrity record
Vacuum cup gripper, three zone face, common isolation valve, three stage ejector
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-2026-000004540) never changes.
Identity and time
| Publication number | OT-2026-000004540 · never reused |
|---|---|
| Internal UUID | 01a0a91b-59f9-7e8a-b7e3-663d20d25612 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:25:37.148233Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004540 |
| Status | PUBLIC |
Content hashes
| Canonical text | 080810825ce375de7d73390847a1ae6739883347702096356744a48eccea1f82 |
|---|---|
| Markdown | 8f52abc53caf0be26ea1f078283cc79d0e5b0b9c469a6afac11d5547a40f7c32 |
| Publication page | 04d985c5268e2675bc3fee95cf05c2fe7568b870582dd2ffeee203c23522b05f |
| Manifest | 7e7abcbb7c1bd3cbe2d048e18273c221d9a8682f8bd4959977c3ca0a4f00ce98 |
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 | 2aNQcKuQV56MdA9wG0t5q2bCHgrO6SNLGveAyICTmBA0IyVOJZpmtPVe8v4mqFbwW1SXfQdOD8nYQDckNbv9DA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:27:02Z batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof root aada101caea153fd76622afa3661a5b8... |
|---|
Independent retrieval
| 2026-10-24T04:41:39.728041Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004540observed 04d985c5268e2675bc3fee95cf05c2fe...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-24T04:41:39.600587Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004540/manifest.jsonobserved 7e7abcbb7c1bd3cbe2d048e18273c221...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-24T04:41:39.480808Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004540/publication.mdobserved 8f52abc53caf0be26ea1f078283cc79d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-24T04:41:39.143205Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004540/publication.txtobserved 080810825ce375de7d73390847a1ae67...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T00:41:35.888216Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004540observed 04d985c5268e2675bc3fee95cf05c2fe...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T00:41:35.820824Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004540/manifest.jsonobserved 7e7abcbb7c1bd3cbe2d048e18273c221...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T00:41:35.745790Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004540/publication.mdobserved 8f52abc53caf0be26ea1f078283cc79d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T00:41:35.633462Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004540/publication.txtobserved 080810825ce375de7d73390847a1ae67...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 |
|---|