OT-2026-000004238
Publication integrity record
Vacuum cup gripper, three zone face, per zone isolation, pump fed, pressure verified, contact triggered
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-2026-000004238) never changes.
Identity and time
| Publication number | OT-2026-000004238 · never reused |
|---|---|
| Internal UUID | 01a0a911-fbbb-7672-9b59-00f6bea2cc16 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:15:23.198672Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004238 |
| Status | PUBLIC |
Content hashes
| Canonical text | 4a6568e2a0542e03b7aa68f9cd13e4b1f426ff6041f95d2d333e486eba3d7ae4 |
|---|---|
| Markdown | 034f2fcb85e404df7a568cedb8ea22a65064003868095bfac88af4b80e4b3fc3 |
| Publication page | 07983496bfae418d1ee682585b383e3744d24c42133e3e15fe8ea3ecd65cb22c |
| Manifest | 15c3f6f23e5200e33b2a6e85e0b8360e6be19d06f1a878aac89b38cd9587541d |
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 | UxjagZ2B+mtlNQ5ezctB3CXHeTsqdaXHX7xPw89CsE1DRI5nLp+UnLVC9Ihnb8NSjdwOU3qYtnT4yrf7iVzfDA== |
| 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
| 2026-09-16T07:20:20.493820Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004238observed 07983496bfae418d1ee682585b383e37...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:20:20.481968Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004238/manifest.jsonobserved 15c3f6f23e5200e33b2a6e85e0b8360e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:20.468804Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004238/publication.mdobserved 034f2fcb85e404df7a568cedb8ea22a6...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:20.453616Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004238/publication.txtobserved 4a6568e2a0542e03b7aa68f9cd13e4b1...fetched by instance-3.rotem.ai from 34.69.0.72, 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
| Custody package | Pending Custody packages are produced weekly. |
|---|