OpenTechnical

OT-2026-000087490

Publication integrity record

Two bellows cup vacuum gripper, two zone face, pump fed, supply line pressure sensor, sustained blow-off before set-down

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-2026-000087490) never changes.

Identity and time

Publication numberOT-2026-000087490 · never reused
Internal UUID01a0ae9a-cd51-7c5a-b26c-6763031ec46d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087490
StatusPUBLIC

Content hashes

Canonical textdc82f2b67cfec722d41b0092b526ee6f8e0862b8e7f256fd9b4ae5034f47c514
Markdown7b9e5348319054ab57023aae4728e416fe440249a3805ed75c6c4e603736d47a
PDF
Publication page9dd98a7a6de1fed357e79adf873800758a108153693a0e891a2dc9fa178697ef
Manifest79a091212c8c73a38f2ceb9683c468515845a5cb2315f0e46088facb3d56a3ed

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
SignatureNp+49muTLMwVbtaqJjsuKTBwRtYZmbHBLmdMR3iCwvqKIB61X8l3CP0Bsf1Bv5ptiXH8kLFwdywBJO12W6SVAA==
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

2026-09-17T09:50:49.259290ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087490
observed 9dd98a7a6de1fed357e79adf87380075...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:49.241484ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087490/manifest.json
observed 79a091212c8c73a38f2ceb9683c46851...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:49.224564ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087490/publication.md
observed 7b9e5348319054ab57023aae4728e416...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:49.206656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087490/publication.txt
observed dc82f2b67cfec722d41b0092b526ee6f...
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.