OpenTechnical

OT-2026-000015004

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, 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-2026-000015004) never changes.

Identity and time

Publication numberOT-2026-000015004 · never reused
Internal UUID01a0ae6d-d096-7da8-9589-5d88e4bce244 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:47.560717Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015004
StatusPUBLIC

Content hashes

Canonical textf40b90d9ab01634d37466d6fb174a481682715b871396f04dfa09ab3818835e5
Markdown68e98e62abca0ae3c3ae9f244d05d48260d2ecccf4fab96c298a6705074aa2df
PDF
Publication page779a479415ec323f5413a43bfe1a5a118dc7b999b6ff52ca5f1478d1d2c0467a
Manifestc17bdf6358d6d735c49dcc6d932c02c4f8c63c822fdda59af501fa7f6453ae7d

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
SignatureaWDgoHgHTETikYDHXzhay/8NNIjg2Os78wZXvOJM5YbeVrR9EISzGqoU8T+RCX5wBNzGJ0YASAtSVu1uW0TRDA==
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

2026-09-17T12:06:58.308917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015004
observed 779a479415ec323f5413a43bfe1a5a11...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:58.288853ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015004/manifest.json
observed c17bdf6358d6d735c49dcc6d932c02c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:58.269362ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015004/publication.md
observed 68e98e62abca0ae3c3ae9f244d05d482...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:58.250507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015004/publication.txt
observed f40b90d9ab01634d37466d6fb174a481...
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.