OpenTechnical

OT-2026-000017253

Publication integrity record

Single cup vacuum gripper, plant vacuum fed, supply line pressure sensor, 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-2026-000017253) never changes.

Identity and time

Publication numberOT-2026-000017253 · never reused
Internal UUID01a0ae6e-76c8-7a1a-b890-922c40ce579b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:30.105855Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017253
StatusPUBLIC

Content hashes

Canonical text4929f972278d94cc83b36f151a53761fc01d98ef86e598685a0f3f2aaa8a6e63
Markdown44db36f28e11d0aaab88fcbae3fbdcb5a1281216cb7c9081f119326c058df6e5
PDF
Publication page9a094c9157eaef6173a89b8c3509d751cd7d9491edf614c5686c6de341b981e7
Manifest1f54b65cd9f10ebd7febce0ef8fba044debea1b4a636f5e0b34b614f1142361b

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
SignatureD3idKRLkwGHnqsPVt7r11pJxpBdGpiTPNbtqh3ZcqgM1onlJypUqakvH+bLA5jKkc0z11N+NYmUWHn1FjBiwAw==
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

2026-09-17T12:02:20.379930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017253
observed 9a094c9157eaef6173a89b8c3509d751...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:20.362960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017253/manifest.json
observed 1f54b65cd9f10ebd7febce0ef8fba044...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:20.345226ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017253/publication.md
observed 44db36f28e11d0aaab88fcbae3fbdcb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:20.327542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017253/publication.txt
observed 4929f972278d94cc83b36f151a53761f...
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.