OT-2026-000003504
Publication integrity record
Porous face vacuum gripper for porous workpieces without a continuous sealing face
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-2026-000003504) never changes.
Identity and time
| Publication number | OT-2026-000003504 · never reused |
|---|---|
| Internal UUID | 01a0a906-dbf7-78e6-8c09-1bb34ce784dd · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:03:14.170325Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003504 |
| Status | PUBLIC |
Content hashes
| Canonical text | 127d85d24ca7db7ecbbce9b87c02553b5e10b2395f8e73330762daa691e4b9f9 |
|---|---|
| Markdown | e28df3986f74e9bcf8f440da4bd68542684b8cda34b4860dba4bcebb8258c0b5 |
| Publication page | 01dcf3501ebb94efe1480ed115945e536b7d165e2b301c228a687900728846e5 |
| Manifest | f45486ebb9c50fc1b1a0323ee5f3848ea9b939b54b51aad60672a16d27fd59c6 |
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 | G3t2cwsmAsKwm5tRHwXkL5psArUKfW9Xkb1HbEylLsggMAMKb6OYqNE7GSX3+NrxblbBPSFcFx/3sh9ICvkGBg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:07:02Z batch OT-TS-2026-W38-008 · RFC 3161 token · inclusion proof root e9da7eb1c397f1749e5915c5a39dbbcf... |
|---|
Independent retrieval
| 2026-09-16T09:00:34.458554Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003504observed 01dcf3501ebb94efe1480ed115945e53...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T09:00:34.444824Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003504/manifest.jsonobserved f45486ebb9c50fc1b1a0323ee5f3848e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T09:00:34.429586Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003504/publication.mdobserved e28df3986f74e9bcf8f440da4bd68542...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T09:00:34.415360Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003504/publication.txtobserved 127d85d24ca7db7ecbbce9b87c02553b...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. |
|---|