OpenTechnical

OT-2026-000029039

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, pump fed, 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-2026-000029039) never changes.

Identity and time

Publication numberOT-2026-000029039 · never reused
Internal UUID01a0ae73-2a9f-7ef5-94b2-ec0725c0b5d7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029039
StatusPUBLIC

Content hashes

Canonical text1f08d076e536b2b14c58098cb42749d1240ddff7d13f6b1f2953a61357ea96cf
Markdownf2bc1d3916e361a38a2d927904eaa79abec2fd93410de6182dc0af23e29b4c3d
PDF
Publication page007d3a5a68fbe5d0cadfa079f810ba55f02e5ace70432c50c8b146e6fd20505f
Manifest0860721d9c0f560cc001e6a16357812b2642058ee236db181b7cc5c12b38f09a

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
Signature17FJnqjFI09WdLqkWEaR8nQRZc5iphJOfMMMlZAxkrKoMoJN/b9Pp1Tf+GbzsNeVFxtFv6bT9i0zdAwzu3wiCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T08:20:39.248364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029039
observed 007d3a5a68fbe5d0cadfa079f810ba55...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:39.230838ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029039/manifest.json
observed 0860721d9c0f560cc001e6a16357812b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:39.211765ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029039/publication.md
observed f2bc1d3916e361a38a2d927904eaa79a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:39.192808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029039/publication.txt
observed 1f08d076e536b2b14c58098cb42749d1...
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.