OT-2026-000038621
Publication integrity record
Single cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, pulsed blow-off after 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-2026-000038621) never changes.
Identity and time
| Publication number | OT-2026-000038621 · never reused |
|---|---|
| Internal UUID | 01a0ae78-2d54-73c6-9569-f3c2a8086320 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:25:06.661829Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000038621 |
| Status | PUBLIC |
Content hashes
| Canonical text | 897d7ec9b01e36afda8908ebf9cec9b7f356bfd4360d2c333acc0281b2a885c7 |
|---|---|
| Markdown | aa598af701d73e7f0d73f25f4e8a046cca8ce32974a161ebd5aa3fe6a5238549 |
| Publication page | d8191275a39b7ee171817c4ef0ccdadf2f8cd9603e3998a890dd3d05fdab90cb |
| Manifest | 38cedd6b2602b6f1a4c5c82dc7724a93efc243a9455082098632f5bd14000ffa |
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 | EIC9tpUQkrt5SVww4YEgpX96Fsy6/Ly55yVgNihJZ7U0lHEAtZMV93DjCVTybE+uhMrkL2fuzSR3Y7ZZxqkFCg== |
| 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
| 2026-10-04T00:41:30.721721Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000038621observed d8191275a39b7ee171817c4ef0ccdadf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-04T00:41:30.658861Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000038621/manifest.jsonobserved 38cedd6b2602b6f1a4c5c82dc7724a93...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T00:41:30.587291Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000038621/publication.mdobserved aa598af701d73e7f0d73f25f4e8a046c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T00:41:30.515736Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000038621/publication.txtobserved 897d7ec9b01e36afda8908ebf9cec9b7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T00:41:22.630390Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000038621observed d8191275a39b7ee171817c4ef0ccdadf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T00:41:22.579568Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000038621/manifest.jsonobserved 38cedd6b2602b6f1a4c5c82dc7724a93...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T00:41:22.527252Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000038621/publication.mdobserved aa598af701d73e7f0d73f25f4e8a046c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T00:41:22.477011Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000038621/publication.txtobserved 897d7ec9b01e36afda8908ebf9cec9b7...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 |
|---|