OT-2026-000003974
Publication integrity record
Bellows cup vacuum gripper, pump fed, contact triggered on the 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-2026-000003974) never changes.
Identity and time
| Publication number | OT-2026-000003974 · never reused |
|---|---|
| Internal UUID | 01a0a90b-a28b-7da9-a9dc-bee3397b9e70 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:08:27.149954Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003974 |
| Status | PUBLIC |
Content hashes
| Canonical text | b78cd7427098de9cc848ccbf5726d5bea10baf9094bc3e3dd0451399256af2f2 |
|---|---|
| Markdown | 6c62664470d8e6f5893713cd8e04ba3eeec4c022b0fed2bfaf91d89b004dfde5 |
| Publication page | 1d4194a6ed5476f1098c0e5155c0d64168fe764c4a865123ddcf674bdb0108a1 |
| Manifest | 4d81bf1c9b61c50dfae0cb698d1a5718feb76dfd89e5f9538b9a16acc0520588 |
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 | 3/2+pItdvlN/UZhQd5NwAg7/GZ5/cxOgFG6hThTxq0bAF7h3O1i/ysDLjeT7nop/ZI8CwB2x1YIQIppxKzUSDA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:27:02Z batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof root aada101caea153fd76622afa3661a5b8... |
|---|
Independent retrieval
| 2026-10-23T04:42:06.331661Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003974observed 1d4194a6ed5476f1098c0e5155c0d641...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-23T04:42:06.183150Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003974/manifest.jsonobserved 4d81bf1c9b61c50dfae0cb698d1a5718...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T04:42:06.046124Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003974/publication.mdobserved 6c62664470d8e6f5893713cd8e04ba3e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T04:42:05.883413Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003974/publication.txtobserved b78cd7427098de9cc848ccbf5726d5be...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T16:43:02.890244Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003974observed 1d4194a6ed5476f1098c0e5155c0d641...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T16:43:02.565184Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003974/manifest.jsonobserved 4d81bf1c9b61c50dfae0cb698d1a5718...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T16:43:02.278646Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003974/publication.mdobserved 6c62664470d8e6f5893713cd8e04ba3e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T16:43:01.914061Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003974/publication.txtobserved b78cd7427098de9cc848ccbf5726d5be...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 |
|---|