OpenTechnical

OT-2026-000067067

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, pump fed, pressure sensor per zone, pulsed 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-2026-000067067) never changes.

Identity and time

Publication numberOT-2026-000067067 · never reused
Internal UUID01a0ae8f-14fe-7b32-9d45-43c6bfd04343 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:07.760615Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067067
StatusPUBLIC

Content hashes

Canonical textb0adb72f9fc7b2a56b2752a022a1ce37228ab16c3f93982b67e42bc20c31aac9
Markdown63344b579e1a0daf82398d2c12fd51fc0dbcfa32276d5a50ae5ba8efec97ad8d
PDF
Publication page10a5d842952daa3bf623a753cd0911438addc7fb9756541ee94b6b92a98fbc16
Manifest5041641fedabdb8c3b27913f65dc205eba6c2b18a3997228ba0eeeac32e9b34b

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
SignatureKnjjNxpEvzJAZMmQRzogiWU43yZIIdrnvMYCQatlylJITZZlxw5eI2oRX43NGQ+N70xv66VWZ1giKDvfOL45Dg==
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

2026-09-17T10:32:19.620899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067067
observed 10a5d842952daa3bf623a753cd091143...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:19.604440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067067/manifest.json
observed 5041641fedabdb8c3b27913f65dc205e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:19.587295ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067067/publication.md
observed 63344b579e1a0daf82398d2c12fd51fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:19.570937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067067/publication.txt
observed b0adb72f9fc7b2a56b2752a022a1ce37...
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 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

Custody packagePending Custody packages are produced weekly.