OpenTechnical

OT-2026-000015655

Publication integrity record

Two cup vacuum gripper, two zone face, two 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-2026-000015655) never changes.

Identity and time

Publication numberOT-2026-000015655 · never reused
Internal UUID01a0ae6e-0c4b-7c1f-92fe-228829918b53 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:02.846253Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015655
StatusPUBLIC

Content hashes

Canonical text4eae7e077899026f5ac4dc22d360c569c40f7ef51071a30fd3459f7d647ab5d6
Markdown67ef1f7f9b1ebd4f003dd18d03302eb12f082494c00dc40554e39aedea626546
PDF
Publication page4ce872acc65910e3d145c373294b38f36878f795094511e8b4fd93e4c3ef92e6
Manifest7f29d8654aa10fb99e7b94cd8b0e9c0353c6d986ff7752516cd4cc20eb5b643e

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
SignatureUQ3o9q/GmzePlgPQ8hihA2SENf8SFh4lQLYtI3YCd22P4wUkIt9BObSlgojnYC5nDVC/EZEOC74e906rQPzQCA==
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

2026-09-17T12:04:54.945526ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015655
observed 4ce872acc65910e3d145c373294b38f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:54.927587ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015655/manifest.json
observed 7f29d8654aa10fb99e7b94cd8b0e9c03...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:54.910170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015655/publication.md
observed 67ef1f7f9b1ebd4f003dd18d03302eb1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:54.891943ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015655/publication.txt
observed 4eae7e077899026f5ac4dc22d360c569...
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.