OpenTechnical

OT-2026-000049548

Publication integrity record

Single bellows cup vacuum gripper, single 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-2026-000049548) never changes.

Identity and time

Publication numberOT-2026-000049548 · never reused
Internal UUID01a0ae81-8f7d-7f1e-b2ac-deebfc3aae51 · 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-2026-000049548
StatusPUBLIC

Content hashes

Canonical text0af4b7af9926dd258c9f1a4c5bd860367f7a2570c971bd555b39800c845f6113
Markdownbc9af68ea0b1d86f4f4180b37d0323fa9679a31941bd25e0f9800af51b6e163e
PDF
Publication pagedb793dd1462a1c64a4bbce2090bcfec7d71e95b06f2d1deb0f12a5868c50f0c3
Manifest89a0522c95996173fbf758b08fc6fa1621baae356df5abd7dfd5600db6378da0

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
Signature1kWTrzq8E7GAhEDfe3ubned1l10YCQBns1kdGquZVkejXJY6riPkgwwn6bm6cqYQfEbcS+IQ2AIvoB14SAj1DQ==
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

2026-09-17T11:02:25.009352ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049548
observed db793dd1462a1c64a4bbce2090bcfec7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:24.988804ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049548/manifest.json
observed 89a0522c95996173fbf758b08fc6fa16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:24.970402ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049548/publication.md
observed bc9af68ea0b1d86f4f4180b37d0323fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:24.950837ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049548/publication.txt
observed 0af4b7af9926dd258c9f1a4c5bd86036...
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.