OpenTechnical

OT-2026-000021254

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, 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-2026-000021254) never changes.

Identity and time

Publication numberOT-2026-000021254 · never reused
Internal UUID01a0ae6f-865c-7083-b5bd-397004ed8c4d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021254
StatusPUBLIC

Content hashes

Canonical text296fbedf2e0293e6e89d8d2725d8a7f4feda67ff4211a6ca42b189157844ebe5
Markdown80aa9f599a92fcaca2a8b88ad7573929db7c2180476284f3d08fb4ef268329c4
PDF
Publication page55ff8d3809dc77040fd74df222d892e170e11f6ab8dd4876d18011d13c21f341
Manifest3b4230d5bdd6114e0d290bb36fd0ee3ee449c67a8c437f50f17f6ccffade94f6

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
SignaturecIfZ0GBycCq3NwoTuoBeD8Ikgo23UT61nVHl5GLDkCrYy8ozsKSoNVEQ7RdINF5RPF+REk8Rwr7rDqwj3EgdBg==
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

2026-09-17T11:55:04.482014ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021254
observed 55ff8d3809dc77040fd74df222d892e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:04.461350ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021254/manifest.json
observed 3b4230d5bdd6114e0d290bb36fd0ee3e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:04.444313ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021254/publication.md
observed 80aa9f599a92fcaca2a8b88ad7573929...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:04.424377ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021254/publication.txt
observed 296fbedf2e0293e6e89d8d2725d8a7f4...
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.