OpenTechnical

OT-2026-000023281

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, single stage ejector, 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-2026-000023281) never changes.

Identity and time

Publication numberOT-2026-000023281 · never reused
Internal UUID01a0ae70-7267-7c68-ba61-b93ea8c932ef · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:40.056870Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023281
StatusPUBLIC

Content hashes

Canonical text9c3818385b1f274a398f9b96ae2ec618dcb16bf50f77cc5d578afe02e5a49f84
Markdown68d2e65f3fa364cb2a18382643050d68997ef28789e14c34f2cb2cc7d34e060f
PDF
Publication page2bca84373ff9c1cac893b7c23385b55e827641902e7f42f5dd5dd5f83cf00e2b
Manifest4adcb51a7876dc92a9dd863786423cc75e2a609f431ad89815d1fb87a7280e0f

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
SignaturekJ9ZSegWPs4zbU4+VgSUtsm+iwfi18TBVpafepp8FmiSXThWGoTcbjFfNh4SFExQf82bXDC5QxdiY8yHmNqDCA==
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

2026-09-17T11:51:21.418812ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023281
observed 2bca84373ff9c1cac893b7c23385b55e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:21.399786ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023281/manifest.json
observed 4adcb51a7876dc92a9dd863786423cc7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:21.383853ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023281/publication.md
observed 68d2e65f3fa364cb2a18382643050d68...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:21.367032ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023281/publication.txt
observed 9c3818385b1f274a398f9b96ae2ec618...
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.