OT-2026-000004415
Publication integrity record
Porous face vacuum gripper, common isolation valve, three outlet manifold, pump fed, 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-2026-000004415) never changes.
Identity and time
| Publication number | OT-2026-000004415 · never reused |
|---|---|
| Internal UUID | 01a0a916-f50c-7377-9b08-9dc15d7a2c2e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:20:49.167046Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004415 |
| Status | PUBLIC |
Content hashes
| Canonical text | d13a21130c61b8c3e9c236c3102f57d46ce6632ccb7b1ff280dde9ac687da47f |
|---|---|
| Markdown | 8f88b3de716368f0f865b5f45df6f624c0c1a175a57e8f203270c3abf0d31288 |
| Publication page | df57e725ee8c3868f05717048de47563a6112e867f20444a45977dd6107a57ee |
| Manifest | a7dad5333e517279810542f62e839ae1f7aadcdfdab9438dff3745c061afb2eb |
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 | DrCJxs7mtOQyb3TlYL4KQkbVxIdJyLiOA/gT/rj0MpJs4Ca5csN4Rm7840FRdiI2NpVHbwUS0FlcIjxz9XGVCw== |
| 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
| 2026-10-29T08:41:18.591071Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004415observed df57e725ee8c3868f05717048de47563...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-29T08:41:18.507254Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004415/manifest.jsonobserved a7dad5333e517279810542f62e839ae1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T08:41:18.415771Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004415/publication.mdobserved 8f88b3de716368f0f865b5f45df6f624...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T08:41:18.168512Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004415/publication.txtobserved d13a21130c61b8c3e9c236c3102f57d4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T16:41:14.598003Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004415observed df57e725ee8c3868f05717048de47563...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T16:41:14.539611Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004415/manifest.jsonobserved a7dad5333e517279810542f62e839ae1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T16:41:14.486500Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004415/publication.mdobserved 8f88b3de716368f0f865b5f45df6f624...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T16:41:14.305713Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004415/publication.txtobserved d13a21130c61b8c3e9c236c3102f57d4...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 |
|---|