OT-2026-000028729
Publication integrity record
Three cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, sustained blow-off 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-2026-000028729) never changes.
Identity and time
| Publication number | OT-2026-000028729 · never reused |
|---|---|
| Internal UUID | 01a0ae72-e2fa-7c91-bba5-1015bf6f92a8 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:19.949572Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028729 |
| Status | PUBLIC |
Content hashes
| Canonical text | 780213bf0d4de5e5abda18edf8aee9dd9b2bc4b3a8b0dc5a1e8a75bb10a52cf3 |
|---|---|
| Markdown | 46298f50311d97172177bfb7dcbff4efb873f11d70a730af32bd74809b650a12 |
| Publication page | 818c4f712b3032dbdcda81d4593e287228dbaf22a6d69dc3624ce21e090cef9b |
| Manifest | de7792aae5cd113446d883974e45456738c6e405c7bd9b7acba239f8fb4cfa2f |
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 | NXEStDNaHBXxvobhA2OjoSv1zY2WwEnaRrVHRB/21EtuS3vl0N8kBrgeGvfHyFi1gmN5kbsXchx/8DSWtL14CQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
|---|
Independent retrieval
| 2026-09-17T11:41:44.446278Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028729observed 818c4f712b3032dbdcda81d4593e2872...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:41:44.426487Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028729/manifest.jsonobserved de7792aae5cd113446d883974e454567...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:41:44.407569Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028729/publication.mdobserved 46298f50311d97172177bfb7dcbff4ef...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:41:44.388979Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028729/publication.txtobserved 780213bf0d4de5e5abda18edf8aee9dd...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. |
|---|