OpenTechnical

OT-2026-000049387

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, plant vacuum 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-2026-000049387) never changes.

Identity and time

Publication numberOT-2026-000049387 · never reused
Internal UUID01a0ae81-8f7b-71a5-a204-610771e5aed6 · 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-2026-000049387
StatusPUBLIC

Content hashes

Canonical text72f9183592eade57e9c387993d33fc19a322a6ec2d71b5393a475409af5ec2a5
Markdowndb6603e6c3bbec9c4d2400438d06587571132121a2ebedee1f01654c6126f376
PDF
Publication page6836210c418c4fda9fb129f89764d970e3a83b23c215c59c7270b6ec0b07d62b
Manifestca15795156615d16101fa90eb004f283b81f084d61e20ed66bcc7525a4b9f21e

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
SignatureEqQTlRF8Fj8/4tgpVZlDxXYskjwFxc/AZtWYYWupF0Y45FaCIFlwiQ8a31BnPHpPleY9Y8IqdPfuoFu1qrMFBA==
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

2026-09-17T11:02:11.901104ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049387
observed 6836210c418c4fda9fb129f89764d970...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:11.882160ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049387/manifest.json
observed ca15795156615d16101fa90eb004f283...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:11.863452ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049387/publication.md
observed db6603e6c3bbec9c4d2400438d065875...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:11.843187ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049387/publication.txt
observed 72f9183592eade57e9c387993d33fc19...
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.