OpenTechnical

OT-2026-000012145

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum 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-2026-000012145) never changes.

Identity and time

Publication numberOT-2026-000012145 · never reused
Internal UUID01a0ae6d-39f4-7efb-bc3b-ca1627fee930 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012145
StatusPUBLIC

Content hashes

Canonical textf3f8e3c4a2f9d3a110410cef1a1ef394316e011b243bb420ed7e328803b890dc
Markdown3254ff285b1242a9d58ef985becf9cc264775b1354b881bb6d385f07eefea588
PDF
Publication paged4c6e052a18909c20164f9e242e5e865b61fb5db3e734eec82dd72b5cd6d9481
Manifest2c7143ac282ed0ccb632c3227db95e06d7a1014805c90885b03373b4ba279d34

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
Signaturev+lepAqCKU8+jY1UHyd3KSlyUagXjF/MXizPOEnKmTLHIcBu+VnUBpbD24TnyhJwQ2egS8cRS3GGFYnu9/TOCA==
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

2026-09-17T12:11:02.286388ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012145
observed d4c6e052a18909c20164f9e242e5e865...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:02.268079ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012145/manifest.json
observed 2c7143ac282ed0ccb632c3227db95e06...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:02.248971ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012145/publication.md
observed 3254ff285b1242a9d58ef985becf9cc2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:02.230498ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012145/publication.txt
observed f3f8e3c4a2f9d3a110410cef1a1ef394...
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.