OpenTechnical

OT-2026-000080289

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, sustained 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-2026-000080289) never changes.

Identity and time

Publication numberOT-2026-000080289 · never reused
Internal UUID01a0ae96-7e77-7ae2-bd40-50840b3d542d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:13.512436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080289
StatusPUBLIC

Content hashes

Canonical textc5456970f880b0e778a21212b1a02e51ee80c069dc16b75b49c72a44c86fdd02
Markdownf98187873acc34ccdf1fbd72495296074c32b29a1d695b6363383bc21d38a962
PDF
Publication page7b49563cd16ca8137d05b41e934d80e476c6743e77d347885113c2e65f764f61
Manifest1af24e6c470996988ac88f233beae11d116e97626683ae0df54b0ee89afb4fd6

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
Signature0AzsqETjqfbUZqr8uCLtYXLe3AUgU28tIyMLlPeKaGGdrISlahYEzw7ald/Z1N8gxTpA3v7YoaeuXAjndrl1DA==
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

2026-10-22T00:41:37.875562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080289
observed 7b49563cd16ca8137d05b41e934d80e4...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-22T00:41:37.654534ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080289/manifest.json
observed 1af24e6c470996988ac88f233beae11d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-22T00:41:37.485855ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080289/publication.md
observed f98187873acc34ccdf1fbd7249529607...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-22T00:41:37.292040ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080289/publication.txt
observed c5456970f880b0e778a21212b1a02e51...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-04T08:41:25.472712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080289
observed 7b49563cd16ca8137d05b41e934d80e4...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-04T08:41:25.415370ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080289/manifest.json
observed 1af24e6c470996988ac88f233beae11d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-04T08:41:25.349079ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080289/publication.md
observed f98187873acc34ccdf1fbd7249529607...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-04T08:41:25.268472ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080289/publication.txt
observed c5456970f880b0e778a21212b1a02e51...
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