OpenTechnical

OT-2026-000020767

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, single stage ejector, 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-2026-000020767) never changes.

Identity and time

Publication numberOT-2026-000020767 · never reused
Internal UUID01a0ae6f-65e2-7f34-811e-231dab17655a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020767
StatusPUBLIC

Content hashes

Canonical text9b62c129f0b82b572a9e12e9126842bb7fdc238cbcb7dab16d7a99363b08d2e5
Markdown17150f5bfe6d21d1febcb0e43176e6231bd08f6691b04dcee47b3c55a300b8b4
PDF
Publication page3bb7c1110a28524ac8af6c08c445bd2a177b8cd2c9161b4e36409460e98a42a6
Manifest72e3fe199e6f6f38f7f0d2d12c34a6bacb90a5e0a6b17f732d7e05aac71e05cd

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
SignaturerJBOB+Bfd7CFSV9mEVh8FQUWqA8EyGxTrbeCWtJVTRdxziAcBWyc9pTYSX5xo57cq5pNctd8/bd2rAh4q17fCw==
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

2026-09-17T11:55:50.675439ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020767
observed 3bb7c1110a28524ac8af6c08c445bd2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:50.659873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020767/manifest.json
observed 72e3fe199e6f6f38f7f0d2d12c34a6ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:50.643279ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020767/publication.md
observed 17150f5bfe6d21d1febcb0e43176e623...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:50.626035ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020767/publication.txt
observed 9b62c129f0b82b572a9e12e9126842bb...
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.