OpenTechnical

OT-2026-000049748

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, supply line pressure sensor, pulsed blow-off after 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-2026-000049748) never changes.

Identity and time

Publication numberOT-2026-000049748 · never reused
Internal UUID01a0ae81-8fef-71d5-b8a9-66864c2c1535 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049748
StatusPUBLIC

Content hashes

Canonical text2e71a2524be6a81d50e285ce9f46d108fceca47e1d838e68db0238e84f9084ad
Markdown7e50dea2a999c95ed36ca53902c4ff77d92b4316240b5ebd52cb8ab2eb65f756
PDF
Publication page4cd0f946311332419e32ded3f0f7167462df3c14e71d1e1e2402d63dd01d926a
Manifest8fd39efe5eb9e8032da8e18f50ec74944fcda06910be54601a42d88e15798f41

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
Signaturec8zvdR2NGgaiJgphZg1Rwcq5XHuzQQr8Q0QyW5h4rcxXgQNIsxKH3G/lhg15ID+9mAWPo0pCI38xt9+/llzlBA==
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

2026-09-17T11:02:46.613880ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049748
observed 4cd0f946311332419e32ded3f0f71674...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:46.597025ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049748/manifest.json
observed 8fd39efe5eb9e8032da8e18f50ec7494...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:46.579998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049748/publication.md
observed 7e50dea2a999c95ed36ca53902c4ff77...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:46.561787ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049748/publication.txt
observed 2e71a2524be6a81d50e285ce9f46d108...
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.