OpenTechnical

OT-2026-000027464

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump 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-2026-000027464) never changes.

Identity and time

Publication numberOT-2026-000027464 · never reused
Internal UUID01a0ae72-6998-76f7-88de-283ef990118e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027464
StatusPUBLIC

Content hashes

Canonical text9c2154cbe6df4b0239b1a24332e6abcd2a8bab1e4489ab419196f3f48d84ae46
Markdown145f6b1b02cfc80f1e0a1f9784343d0dc38d2d3f654753fda83a5481a221794f
PDF
Publication page4c3a2db1b31a8b485ad7571a7ab6df9ef578d518e830698edc568670a462b568
Manifest53aea8e12e45c33c310d207838aeff2fac530bd088b8f65cc8145d7a73c77159

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
SignaturevlttIhB8CpTsqjgo9cxqPPVyPaf4TToHqFj6c8UsHaPtxihCRHF5aJJNvE5wI7dcAFEs5G5LwX+FAbAfBFe1Ag==
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

2026-09-17T11:42:55.421760ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027464
observed 4c3a2db1b31a8b485ad7571a7ab6df9e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:55.402412ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027464/manifest.json
observed 53aea8e12e45c33c310d207838aeff2f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:55.385729ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027464/publication.md
observed 145f6b1b02cfc80f1e0a1f9784343d0d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:55.369195ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027464/publication.txt
observed 9c2154cbe6df4b0239b1a24332e6abcd...
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.