OT-2026-000021943
Publication integrity record
Two bellows cup vacuum gripper, two zone face, common isolation valve, pump fed, pulsed 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-2026-000021943) never changes.
Identity and time
| Publication number | OT-2026-000021943 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-bb5b-7cfb-bdf5-5595a95872ca · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:53.201585Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021943 |
| Status | PUBLIC |
Content hashes
| Canonical text | 47ae53d6311a22a420a14491c1ae007e600d525a5f5cdc20cb604c27969069ad |
|---|---|
| Markdown | 3293056fe1bcda6b230a7de1286cee94c24f080b16f685f2ddabc87c585f1c90 |
| Publication page | 81cc2c23cffe6625f2812b7c10065fd57a225d50539ec48cbfa05a07ffe96f4b |
| Manifest | 51104d8a8a756542718a234af12cfd35eb9326245aa6d8d24ca3f19c0e4bde47 |
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 | OYgSJGAHmC9AwvSunNGJ5Vtvs2cZNc9kKIJZ/dH+Po3MCIdlPwO5J1ZFtF+xK5LdDulBualYylpnXeUgoE/yDA== |
| 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
| 2026-09-17T11:54:36.546613Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021943observed 81cc2c23cffe6625f2812b7c10065fd5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:54:36.528495Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021943/manifest.jsonobserved 51104d8a8a756542718a234af12cfd35...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:36.510414Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021943/publication.mdobserved 3293056fe1bcda6b230a7de1286cee94...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:36.492044Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021943/publication.txtobserved 47ae53d6311a22a420a14491c1ae007e...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
| 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 |
|---|