OpenTechnical

OT-2026-000042642

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, plant vacuum fed, sustained blow-off 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-2026-000042642) never changes.

Identity and time

Publication numberOT-2026-000042642 · never reused
Internal UUID01a0ae7a-c0ce-7448-948a-10864db6e2e9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042642
StatusPUBLIC

Content hashes

Canonical text2c0525370d153a257d4f9a98eb3c85ed8361017b300360e1e62e4e694cafbe7b
Markdown18709caa78b2d93e1fda063976aa207d866e70108fcd99553e5c2f25a2af411e
PDF
Publication page74f94e0ed0e43c22f1d5824d58d281d72aed779539afd29103fa154674116e99
Manifest474db432c116ab4ead873163bf3b8f191aface8b66f3c5c6ec969ca0b164beca

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
SignatureOviG1Qnb4In+VipNkASvZxuxjQRSyfMk+HYOM1+lsl2+B5wTP5J3Q3UfrIRRevI7ipx+uZu7z5jMU9MSjCzKBA==
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

2026-09-17T11:14:22.775345ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042642
observed 74f94e0ed0e43c22f1d5824d58d281d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:22.756891ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042642/manifest.json
observed 474db432c116ab4ead873163bf3b8f19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:22.736211ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042642/publication.md
observed 18709caa78b2d93e1fda063976aa207d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:22.717339ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042642/publication.txt
observed 2c0525370d153a257d4f9a98eb3c85ed...
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.