OpenTechnical

OT-2026-000069659

Publication integrity record

Three bellows cup vacuum gripper, three zone face, six outlet manifold, pump 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-2026-000069659) never changes.

Identity and time

Publication numberOT-2026-000069659 · never reused
Internal UUID01a0ae90-b52c-7d8e-98e9-59bdcd512180 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:54.310022Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069659
StatusPUBLIC

Content hashes

Canonical text8c1f45db7f56c3c0e6f2f8b380c6fd213f6deffae8a0c91e8fcdc9002b1bc1b0
Markdown4ea4bbd0d8028a6acb9a5aa135d9523a01d5f8be38a90b8e89b43440eca5a3a3
PDF
Publication pagef2cfb853ce8dc0779bdd98be27ac4cfec8d1b6928d3b62ca44f83d08593c191f
Manifestd2a4f8dcca980970d5edc9155cd2dacad565fc00f003a3063d56c0224d310791

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
SignaturezsosTUSMEiY5A59sJrmXIoR5ml0+h4In4NGydo6DZzG15WE/zBHtKkCXSFlqq0iZS0oFVK5HLbMgkJUXX2/1DA==
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

2026-09-17T10:28:19.721847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069659
observed f2cfb853ce8dc0779bdd98be27ac4cfe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:19.705119ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069659/manifest.json
observed d2a4f8dcca980970d5edc9155cd2daca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:19.687654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069659/publication.md
observed 4ea4bbd0d8028a6acb9a5aa135d9523a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:19.670831ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069659/publication.txt
observed 8c1f45db7f56c3c0e6f2f8b380c6fd21...
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.