OT-2026-000007415
Publication integrity record
Vacuum cup gripper, two zone face, per zone isolation, pump fed, contact triggered, silicone cups
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-2026-000007415) never changes.
Identity and time
| Publication number | OT-2026-000007415 · never reused |
|---|---|
| Internal UUID | 01a0a97d-fd4b-77ea-a1d0-cf732aa047d1 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T09:13:21.486243Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000007415 |
| Status | PUBLIC |
Content hashes
| Canonical text | f5f40db0c217c1f37a5edabc7dc7eb29bbff684f0091cd475838dbd9d8dd63fc |
|---|---|
| Markdown | 2ff6fc3e99540f138ae0b198964caf34e2d19808d24cbb907199614903f50fc3 |
| Publication page | 50f34efe445db2552e236fbf7842a7dcb42ccf14a217f342e0f062171a775c18 |
| Manifest | 1eeffbdbb6baab669de35a226237f9d021f17427d2b94a417e369d1912a9ecaf |
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 | 3tYKCE66HNgXaMJVbrNKQLMcbFQ8XeopE4qhgb1L92IZFG/9VjZggQN3/v1v7SsHYOcEIlRsrDwj7GvcRiCVBg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T09:20:33Z batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof root 07bfbe2fb3517c1c41f239fb2e682fbe... |
|---|
Independent retrieval
| 2026-10-13T04:41:20.488713Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007415observed 50f34efe445db2552e236fbf7842a7dc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-13T04:41:20.429889Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007415/manifest.jsonobserved 1eeffbdbb6baab669de35a226237f9d0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T04:41:20.315469Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007415/publication.mdobserved 2ff6fc3e99540f138ae0b198964caf34...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T04:41:20.239574Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007415/publication.txtobserved f5f40db0c217c1f37a5edabc7dc7eb29...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-22T16:41:19.372152Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007415observed 50f34efe445db2552e236fbf7842a7dc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-22T16:41:19.321191Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007415/manifest.jsonobserved 1eeffbdbb6baab669de35a226237f9d0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-22T16:41:19.271931Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007415/publication.mdobserved 2ff6fc3e99540f138ae0b198964caf34...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-22T16:41:19.141852Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007415/publication.txtobserved f5f40db0c217c1f37a5edabc7dc7eb29...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 |
|---|