OpenTechnical

OT-2026-000049155

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, single stage ejector, 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-2026-000049155) never changes.

Identity and time

Publication numberOT-2026-000049155 · never reused
Internal UUID01a0ae81-134e-7d4d-8bbc-e82096eb05b2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:49.967260Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049155
StatusPUBLIC

Content hashes

Canonical text8e408893474c4c4c12c7443b8ed4664bf3bb637cbc76ac6d05f65bc604045e65
Markdownac3a52c321d2d151ef261ac46559635a1209b0cd579fe214b2424bf11270539f
PDF
Publication pageb118edb3850b8042143ca7cc88b924ce186a2d8eb395f2440cd35c122d604edd
Manifestc4f1e78b400c68594b92020d56409d3ed56ef6acfeaa365daaf00bf49f47a077

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
Signature5gAUBGWAeCZQRsFzyJ4pF7oKj/WiDxnHBDTBx5cTj094uCAI/lD2PC7XMKUC5dZjTjgIFUbFswWaMSfkM91bBA==
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

2026-09-17T11:03:56.937899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049155
observed b118edb3850b8042143ca7cc88b924ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:56.921223ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049155/manifest.json
observed c4f1e78b400c68594b92020d56409d3e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:56.903881ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049155/publication.md
observed ac3a52c321d2d151ef261ac46559635a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:56.885443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049155/publication.txt
observed 8e408893474c4c4c12c7443b8ed4664b...
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.