OT-2026-000007442
Publication integrity record
Vacuum cup gripper, three zone face, pump fed, pressure verified at each zone, 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-2026-000007442) never changes.
Identity and time
| Publication number | OT-2026-000007442 · never reused |
|---|---|
| Internal UUID | 01a0a97e-f277-7426-b24d-70905365a99b · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T09:14:24.250801Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000007442 |
| Status | PUBLIC |
Content hashes
| Canonical text | 27e5ba9e145f19d73733b04f5d408028a3ae644ffeb0f735e2a23486735ab534 |
|---|---|
| Markdown | e2e01ded045ff7cfb8c2f0110e376110c0d8fff31aa777e2cd9eefc8943df6b1 |
| Publication page | 50e9b399e572f23457865deeffb8963f4fe5edfc0cd20fd142bf3783c10118a7 |
| Manifest | f59687c5a81709cc283af474f987f22581c78617902420758f42df5390c3bec5 |
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 | vllRYDPyK7PPNvBnz35POZhStGhuBa5EKzKJ9vA/775bKSO3TF4OWudrmT07puUoiIVZHaULtVtdANJNvDWrBg== |
| 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... |
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Independent retrieval
| 2026-10-29T12:41:10.657590Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007442observed 50e9b399e572f23457865deeffb8963f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-29T12:41:10.589332Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007442/manifest.jsonobserved f59687c5a81709cc283af474f987f225...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T12:41:10.521222Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007442/publication.mdobserved e2e01ded045ff7cfb8c2f0110e376110...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T12:41:10.318073Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007442/publication.txtobserved 27e5ba9e145f19d73733b04f5d408028...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T12:41:17.567093Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007442observed 50e9b399e572f23457865deeffb8963f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T12:41:17.519445Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007442/manifest.jsonobserved f59687c5a81709cc283af474f987f225...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T12:41:17.471185Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007442/publication.mdobserved e2e01ded045ff7cfb8c2f0110e376110...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T12:41:17.360478Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007442/publication.txtobserved 27e5ba9e145f19d73733b04f5d408028...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 |
|---|