OT-2026-000049672
Publication integrity record
Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, pulsed blow-off after set-down
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-2026-000049672) never changes.
Identity and time
| Publication number | OT-2026-000049672 · never reused |
|---|---|
| Internal UUID | 01a0ae81-8fee-7fc2-814a-7ddd36634372 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:35:21.728203Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000049672 |
| Status | PUBLIC |
Content hashes
| Canonical text | 4ea05d4eedf35ed01f7c54ecb80697b02a35f2ee26cd925fa44ff1db606a228f |
|---|---|
| Markdown | a82d33aaebc840469b58c7dff23a514f6946ed29fa8f68aaacbe68c52fb43e05 |
| Publication page | b78418c76a9bf2442e7c1ba48220a790fdeb4e80534c449045ac0e1d6afb2aaa |
| Manifest | e47f24446713c30ca0b56d3455aa655b80809bb624873598016244ca67cb2ba9 |
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 | 48xh7IWAW4Ey007pdnRqHCDga9jWmT0YjKF5/Zg3GD7lkFWp/E9E7k1cx7OcUU2O/dZIuc56+0FVSLOyHPfSCg== |
| 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
| 2026-10-27T12:41:14.452819Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049672observed b78418c76a9bf2442e7c1ba48220a790...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-27T12:41:14.333866Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049672/manifest.jsonobserved e47f24446713c30ca0b56d3455aa655b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-27T12:41:14.185445Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049672/publication.mdobserved a82d33aaebc840469b58c7dff23a514f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-27T12:41:14.029713Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049672/publication.txtobserved 4ea05d4eedf35ed01f7c54ecb80697b0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-15T00:41:32.303160Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049672observed b78418c76a9bf2442e7c1ba48220a790...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-15T00:41:32.254196Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049672/manifest.jsonobserved e47f24446713c30ca0b56d3455aa655b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-15T00:41:32.178654Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049672/publication.mdobserved a82d33aaebc840469b58c7dff23a514f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-15T00:41:32.061498Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049672/publication.txtobserved 4ea05d4eedf35ed01f7c54ecb80697b0...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 |
|---|