OT-2026-000091073
Publication integrity record
Four bellows cup vacuum gripper, four zone face, common isolation valve, single stage ejector, pressure sensor per zone, sustained 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-2026-000091073) never changes.
Identity and time
| Publication number | OT-2026-000091073 · never reused |
|---|---|
| Internal UUID | 01a0ae9c-c012-7c94-bef0-e9e2249675e9 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T09:05:03.518217Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000091073 |
| Status | PUBLIC |
Content hashes
| Canonical text | 1b6f0bdd6d21fd8e3c4dcbaf09612d506f0c6ffedb0573f1b2f1f38c74485696 |
|---|---|
| Markdown | 0733865b87ad222a0e741abe29263dc186f48eafbf5f15b911414bb6f0167492 |
| Publication page | f4897a0093eb8cff42af64446fe22d6c5505251190db7a5647a3feb8b7e10895 |
| Manifest | 473fdba2b6cfcf63254ed7ac06fdc883fd76d34574f3e273822107daf6365675 |
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 | AccwJx2Ky7RGYOjeaJowTFa8PYIkgrpgNnu49ozI2yDdycEmwKq7PanHiKtjAqMx9JZf+xZlVSs5/KEq+mK+BQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:07:03Z batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof root 061e9ae86cc297cdce873398aaec3f72... |
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Independent retrieval
| 2026-09-29T12:41:44.005864Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091073observed f4897a0093eb8cff42af64446fe22d6c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-29T12:41:43.933416Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091073/manifest.jsonobserved 473fdba2b6cfcf63254ed7ac06fdc883...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-29T12:41:43.865248Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091073/publication.mdobserved 0733865b87ad222a0e741abe29263dc1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-29T12:41:43.793934Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091073/publication.txtobserved 1b6f0bdd6d21fd8e3c4dcbaf09612d50...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T00:41:46.202285Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091073observed f4897a0093eb8cff42af64446fe22d6c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T00:41:46.151316Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091073/manifest.jsonobserved 473fdba2b6cfcf63254ed7ac06fdc883...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T00:41:46.098025Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091073/publication.mdobserved 0733865b87ad222a0e741abe29263dc1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T00:41:45.992611Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091073/publication.txtobserved 1b6f0bdd6d21fd8e3c4dcbaf09612d50...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 |
|---|