OpenTechnical

OT-2026-000027504

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, pump fed, sustained 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-2026-000027504) never changes.

Identity and time

Publication numberOT-2026-000027504 · never reused
Internal UUID01a0ae72-6998-75b3-abde-1ceef35accf2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027504
StatusPUBLIC

Content hashes

Canonical textb1a82df2ebde5e21dbbd5549cb79125f9eb41c3dfbb07849953847bb9bd385c7
Markdown915daebe7a298ded02523679bbe16a486232b615ff05f4aaef49071afa7597d7
PDF
Publication pagea6fdae7fa40c5fa7a2f045cf590ec4984d2d20620dc43d9571a7495dff830884
Manifestbcd76f961137094319931615db301c77c0cd6cde4531e9005847c4118d1b8db2

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
SignatureXb1V7w3iAeZ4zxRZoX309dNtLTApL1XyXyqkCuO0gNhg1GltFPaKLBI8R94fp2Vmk8ClVvmhtpYw02gxEVSACA==
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

2026-09-17T11:42:58.522802ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027504
observed a6fdae7fa40c5fa7a2f045cf590ec498...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:58.495957ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027504/manifest.json
observed bcd76f961137094319931615db301c77...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:58.478589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027504/publication.md
observed 915daebe7a298ded02523679bbe16a48...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:58.461435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027504/publication.txt
observed b1a82df2ebde5e21dbbd5549cb79125f...
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.