OpenTechnical

OT-2026-000064919

Publication integrity record

Four bellows cup vacuum gripper, four zone face, pump fed, pressure sensor per zone, 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-2026-000064919) never changes.

Identity and time

Publication numberOT-2026-000064919 · never reused
Internal UUID01a0ae8d-debd-72e2-ae08-80cb4043225c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:48.495161Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000064919
StatusPUBLIC

Content hashes

Canonical text0420ff7eb636f8956cf6364d874f15e1d29ed4f3702ad67d8b9dc9bc24b1fa63
Markdowne4c80a36e56be1b5e84ba9546ffd0271646b6c5e893febe17dba56c0669a6fc5
PDF
Publication pagef2dbca7d61f2f0d5fa1417ba7cafb520fb4dfa2b8ba81b499b8ab4ae6018e83b
Manifestb825c60b0040df6503e4c3ecfff8bac5f9e1e46b0d4b6d2ecf4c32b9c1054a7a

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
Signature8XKru42O1c68aRlk4xWXpgi1RVx0jbRSKxn+ZvXFS6XOM2l5+XNeSYcqyh+gHKtiOvuXBCCh2uA4AdICFph2DQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:35:51.195173ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064919
observed f2dbca7d61f2f0d5fa1417ba7cafb520...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:51.177564ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064919/manifest.json
observed b825c60b0040df6503e4c3ecfff8bac5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:51.160766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064919/publication.md
observed e4c80a36e56be1b5e84ba9546ffd0271...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:51.143914ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064919/publication.txt
observed 0420ff7eb636f8956cf6364d874f15e1...
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.