OpenTechnical

OT-2026-000027415

Publication integrity record

Three bellows cup vacuum gripper, three zone face, 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-2026-000027415) never changes.

Identity and time

Publication numberOT-2026-000027415 · never reused
Internal UUID01a0ae72-6998-7a83-95b0-4815a84b146e · 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-2026-000027415
StatusPUBLIC

Content hashes

Canonical text0b1a6f7044f371f43002a7bef87e1e31ef71fe0cf479d6b1cc1829ee2aa0742a
Markdown4f0a1c14a755485b526224c57edf8657f42081dccc027cacbb769210d628a5e7
PDF
Publication pageb54c1d6db7fb4515b9247ac5a87f479156176db16e3b9a60a4705c18de65929e
Manifest7d4db06c6491350d9e29ff9c2ed6df101246fbb179642879e31f0392ad17b9ad

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
Signature3j0e95a4T3PQPqKYnqoG3YGZ2xVGte4i4GEk0P6WHBnTPN2EmnAB3mOnjT5WFkyuXHGXoDOou0/FyaKQhxJ0CA==
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

2026-09-17T11:42:50.563006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027415
observed b54c1d6db7fb4515b9247ac5a87f4791...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:50.545403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027415/manifest.json
observed 7d4db06c6491350d9e29ff9c2ed6df10...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:50.527790ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027415/publication.md
observed 4f0a1c14a755485b526224c57edf8657...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:50.507645ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027415/publication.txt
observed 0b1a6f7044f371f43002a7bef87e1e31...
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.