OT-2026-000021575
Publication integrity record
Four bellows cup vacuum gripper, four zone face, per zone isolation, pump fed, 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-2026-000021575) never changes.
Identity and time
| Publication number | OT-2026-000021575 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-865e-795b-b705-18b80b941f30 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:39.631048Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021575 |
| Status | PUBLIC |
Content hashes
| Canonical text | 5e6542a696defb18dd58a89d0c852b4577eb2a7e53afaaf0c46e1b6838e4d7df |
|---|---|
| Markdown | d5065753fce1ec53c5a5c85055bcb5f9a4c2b7ae23be1abd441db2ba6b77561e |
| Publication page | 216fc75d6eb6ded5018df18209d583218b62321985e3ff5c1fb5333436c7a43c |
| Manifest | 8af77185ea4cf010b061809203d314caffb3d147cbad1bad51efa47f3d7789b8 |
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 | +X4R+JnBybSTH4MXSdkUF3dauH7qaMEAeWusIa9MHtqc00hiKeyhECEPY9dtvd9F26UXOqX7T3MIS/It82tgBA== |
| 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
| 2026-09-17T11:55:29.925867Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021575observed 216fc75d6eb6ded5018df18209d58321...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:55:29.908002Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021575/manifest.jsonobserved 8af77185ea4cf010b061809203d314ca...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:55:29.889042Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021575/publication.mdobserved d5065753fce1ec53c5a5c85055bcb5f9...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:55:29.871012Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021575/publication.txtobserved 5e6542a696defb18dd58a89d0c852b45...fetched by instance-3.rotem.ai from 34.69.0.72, 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
| Custody package | Pending Custody packages are produced weekly. |
|---|