OT-2026-000057872
Publication integrity record
Single bellows cup vacuum gripper, common isolation valve, single stage ejector, sustained 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-2026-000057872) never changes.
Identity and time
| Publication number | OT-2026-000057872 · never reused |
|---|---|
| Internal UUID | 01a0ae88-6ed8-7978-8c6e-daa1287e6922 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:42:52.020108Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000057872 |
| Status | PUBLIC |
Content hashes
| Canonical text | 599108f4abb7ecf1b610e343161b22a97d963e39793a524129a4c4f67dd8f312 |
|---|---|
| Markdown | ec03cfe9658aad3aba21e4d98ff6cf52f7281db42b9470d3d5adbaff267e792d |
| Publication page | ded5f712e1d1b0e95d3fea27745cc3bdcfbd83a7d4352f2bc69b295a73cfe799 |
| Manifest | 9292ceb7e01638356d4748fdf562bc1a259f627a478e318187929526f9beff4a |
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 | u1aq3XhFYqjKZN8KLvykj1G16ihp5Sq8Q6qptPlw0aIpBmtMaBUhT5jKApRDfROssUjE2x0Ijo+FpeqXh+/xDA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:47:04Z batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof root 954df3475fbcfbe27467725cfb2ec919... |
|---|
Independent retrieval
| 2026-10-10T20:41:19.716097Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000057872observed ded5f712e1d1b0e95d3fea27745cc3bd...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-10T20:41:19.644536Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000057872/manifest.jsonobserved 9292ceb7e01638356d4748fdf562bc1a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-10T20:41:19.541608Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000057872/publication.mdobserved ec03cfe9658aad3aba21e4d98ff6cf52...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-10T20:41:19.454055Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000057872/publication.txtobserved 599108f4abb7ecf1b610e343161b22a9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T12:41:53.327408Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000057872observed ded5f712e1d1b0e95d3fea27745cc3bd...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T12:41:53.169181Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000057872/manifest.jsonobserved 9292ceb7e01638356d4748fdf562bc1a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T12:41:53.010382Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000057872/publication.mdobserved ec03cfe9658aad3aba21e4d98ff6cf52...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T12:41:52.787083Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000057872/publication.txtobserved 599108f4abb7ecf1b610e343161b22a9...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 |
|---|