OpenTechnical

OT-2026-000077842

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, vented 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-2026-000077842) never changes.

Identity and time

Publication numberOT-2026-000077842 · never reused
Internal UUID01a0ae95-2ed0-7a70-95cc-d48be0183dfc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077842
StatusPUBLIC

Content hashes

Canonical textbd86f3b478699518e9c3fb13dacb9e85ce77763a28bdba3729cbc42b872330c9
Markdownd8b2c82a3f6d2219dac8f5caa1ab72e72a35d622bb5ffc559df8605ffe0350d1
PDF
Publication page3d30659f3d2d11922daed9028f5e5822994c6913e71fc75f90a5d652da100764
Manifestc9618334ce1b3deea04e0433a9fa4ce963120032d44d43cec43021b57560ee75

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
Signatures/PQyfy18IaZ9MtHlDnYi3PiGWtXAKWC+ul/jYMzVKuZpbqwX3cTBKwP+aymb19bkvw3iO/r/8U+jpwopjgNDg==
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

2026-09-17T10:06:57.809335ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077842
observed 3d30659f3d2d11922daed9028f5e5822...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:57.788492ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077842/manifest.json
observed c9618334ce1b3deea04e0433a9fa4ce9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:57.770612ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077842/publication.md
observed d8b2c82a3f6d2219dac8f5caa1ab72e7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:57.736398ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077842/publication.txt
observed bd86f3b478699518e9c3fb13dacb9e85...
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.