OpenTechnical

OT-2026-000047855

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, 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-2026-000047855) never changes.

Identity and time

Publication numberOT-2026-000047855 · never reused
Internal UUID01a0ae7f-c421-7b26-b734-b6b207cbac9e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047855
StatusPUBLIC

Content hashes

Canonical text73ab2729d72add2711c289ed1a6cd612f1093f913364e188a6287216d1dfd30c
Markdown7a00d43bb841178eef1cc1f9cab05199e5eb7b042d11825767ae742b68ba93c1
PDF
Publication page97834d25f23e198123953e5c6c917234e93034452ceca52384fdfcce01963906
Manifest2db786ab263f83b328c3dd60dae3514acd2612a8be23906e48734c542795ad21

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
SignaturehaEY6eIogcruGf/ga57JYjjHZrXqYB58o28DyiKYjFynv9n48eciRfqAc1Z8T0FaSgH3Ak0CBv06Znkt2FLiAA==
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

2026-09-17T11:05:46.659745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047855
observed 97834d25f23e198123953e5c6c917234...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:46.641410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047855/manifest.json
observed 2db786ab263f83b328c3dd60dae3514a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:46.621475ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047855/publication.md
observed 7a00d43bb841178eef1cc1f9cab05199...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:46.602074ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047855/publication.txt
observed 73ab2729d72add2711c289ed1a6cd612...
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.