OT-2026-000031839
Publication integrity record
Foam pad vacuum gripper, three zone face, four outlet manifold, single stage ejector, 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-2026-000031839) never changes.
Identity and time
| Publication number | OT-2026-000031839 · never reused |
|---|---|
| Internal UUID | 01a0ae74-bad1-7150-9776-710d8e4aa04b · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:21:20.739935Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000031839 |
| Status | PUBLIC |
Content hashes
| Canonical text | da6bef168202995da21d44eb3001217193f1bdcb050bfdb0e147b2af58ae719f |
|---|---|
| Markdown | 5d0e23ad99d70aeaf0dc78e43d28ecc7c7f50936795611972f32f6438aaa3177 |
| Publication page | e0a7e31e023ca41d608816524f07ab76042120bdd5fa6f2bbc3f04ea48fb3331 |
| Manifest | 33a7123e4293f52a88eb000fdd13e2f40bd91386196f26d0e6a845738503b58b |
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 | 7ZBPBf7dCh5iHKIHms6Arb9e+ImfMNOpgbn8JAoKdHzhGw7IJouzyDar0DOTMWi3TaRPH/dsktw1iqAfwiRMDg== |
| 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
| 2026-11-02T20:41:34.617602Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031839observed e0a7e31e023ca41d608816524f07ab76...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-11-02T20:41:34.526642Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031839/manifest.jsonobserved 33a7123e4293f52a88eb000fdd13e2f4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-11-02T20:41:34.449311Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031839/publication.mdobserved 5d0e23ad99d70aeaf0dc78e43d28ecc7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-11-02T20:41:34.258660Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031839/publication.txtobserved da6bef168202995da21d44eb30012171...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T20:41:45.212088Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031839observed e0a7e31e023ca41d608816524f07ab76...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T20:41:45.146667Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031839/manifest.jsonobserved 33a7123e4293f52a88eb000fdd13e2f4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T20:41:45.094252Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031839/publication.mdobserved 5d0e23ad99d70aeaf0dc78e43d28ecc7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T20:41:45.025270Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031839/publication.txtobserved da6bef168202995da21d44eb30012171...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 |
|---|