OpenTechnical

OT-2026-000072869

Publication integrity record

Foam pad vacuum gripper, three zone face, four outlet manifold, pump fed, supply line pressure sensor, pulsed blow-off before set-down

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-2026-000072869) never changes.

Identity and time

Publication numberOT-2026-000072869 · never reused
Internal UUID01a0ae92-89db-7983-806c-f141d9e91e78 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072869
StatusPUBLIC

Content hashes

Canonical text0d934729068a6acd1cbae854caf9f944e22479db1a490924e2843dbc4d9312e4
Markdown6bd93aafe510c200cc7564a5964ad1e7df6dfe176054c65cfb59f033652c0b10
PDF
Publication pagef44dd9d520bff11339ac5e88b0c67282abb0635b344ed4fe6ce5ab3aba1e188f
Manifest02180c1010a1d36a5183b9fb39bb02cd902c8d4ae78491c975f28559d7ab030a

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
Signature/JDPiYlmxpFDbUkiOkdplLbnQvc69t/tjlJC4tpqNoRcWicbcL8ynsuB1Z+OQIEYXKIYiYRY5g9dZFq3USyNDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-10-27T04:42:09.530672ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072869
observed f44dd9d520bff11339ac5e88b0c67282...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T04:42:09.478624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072869/manifest.json
observed 02180c1010a1d36a5183b9fb39bb02cd...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T04:42:09.425621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072869/publication.md
observed 6bd93aafe510c200cc7564a5964ad1e7...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T04:42:09.367098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072869/publication.txt
observed 0d934729068a6acd1cbae854caf9f944...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-22T16:41:56.590596ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072869
observed f44dd9d520bff11339ac5e88b0c67282...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-22T16:41:56.526791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072869/manifest.json
observed 02180c1010a1d36a5183b9fb39bb02cd...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-22T16:41:56.473997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072869/publication.md
observed 6bd93aafe510c200cc7564a5964ad1e7...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-22T16:41:56.377829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072869/publication.txt
observed 0d934729068a6acd1cbae854caf9f944...
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 archivePending 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-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent