OpenTechnical

OT-2026-000012915

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, two 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-2026-000012915) never changes.

Identity and time

Publication numberOT-2026-000012915 · never reused
Internal UUID01a0ae6d-5563-728d-abca-8f8cb1e33c78 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012915
StatusPUBLIC

Content hashes

Canonical texteb7f9dccf7d7bd16ede862f623a6345f85a752e563dc7bcddbf8233f3735e379
Markdown446e527ca12e58fe2686d22315e54d6ca4683953467352c4e30c3be4b4c1b404
PDF
Publication pagec6db20d409ef4df7a731f87960ddfbe29f89231d889018081e4e947ae8841897
Manifest6a6cf1d2bf315c01d67b9a43d6836ae3801d756737f530e4bf8371bbb3d69cb5

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
Signature16zGjLhruJk9O2mpwVxM+wwzmEteNUJ6HHmpgFIx+mXVQbqkgg4EcVD08CZ6qOLRw3joqN1Hg23Xp3Hj5hJoCA==
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

2026-09-17T12:10:42.537129ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012915
observed c6db20d409ef4df7a731f87960ddfbe2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:42.516185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012915/manifest.json
observed 6a6cf1d2bf315c01d67b9a43d6836ae3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:42.496978ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012915/publication.md
observed 446e527ca12e58fe2686d22315e54d6c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:42.476365ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012915/publication.txt
observed eb7f9dccf7d7bd16ede862f623a6345f...
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.