OT-2026-000005503
Publication integrity record
Porous face vacuum gripper, common isolation valve, three stage ejector, contact triggered
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-2026-000005503) never changes.
Identity and time
| Publication number | OT-2026-000005503 · never reused |
|---|---|
| Internal UUID | 01a0a93b-25b9-7b0f-9731-0f2e01232827 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T08:00:20.924707Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000005503 |
| Status | PUBLIC |
Content hashes
| Canonical text | ee16e2305b2b3628f8d9f3a7d1d43f13b2c8d7c73d2f170751451a500db73ac2 |
|---|---|
| Markdown | 379cd95a365a3d5d94a1b45a91b8dd7829fc5cd3648bfe3a8a3ad1af735a8bd3 |
| Publication page | e2d0ba1e2343885dda36da4c7a76ccd8b469be1ee1062c97e5a1de2f45f8811d |
| Manifest | afeb6287c85197ce70a989627adb373372bdd3a8616d56c7241503c738c6537e |
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 | RcHSmNawqNTkW67qfwlTGEi8GbY7FYuuv/5JZIShUnfrEHcZR2p+XMmlBi//KGGYRP2BkPYnxlQsROGffF0EAg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T08:07:02Z batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof root 8f13af7374aef42943b7bbe6a279c57a... |
|---|
Independent retrieval
| 2026-10-16T12:41:46.871083Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005503observed e2d0ba1e2343885dda36da4c7a76ccd8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-16T12:41:46.822099Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005503/manifest.jsonobserved afeb6287c85197ce70a989627adb3733...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-16T12:41:46.772562Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005503/publication.mdobserved 379cd95a365a3d5d94a1b45a91b8dd78...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-16T12:41:46.601590Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005503/publication.txtobserved ee16e2305b2b3628f8d9f3a7d1d43f13...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-09T04:41:42.206630Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005503observed e2d0ba1e2343885dda36da4c7a76ccd8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-09T04:41:42.133320Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005503/manifest.jsonobserved afeb6287c85197ce70a989627adb3733...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-09T04:41:42.052550Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005503/publication.mdobserved 379cd95a365a3d5d94a1b45a91b8dd78...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-09T04:41:41.922509Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005503/publication.txtobserved ee16e2305b2b3628f8d9f3a7d1d43f13...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 |
|---|