OpenTechnical

OT-2026-000073458

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, manifold pressure sensor, vented 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-2026-000073458) never changes.

Identity and time

Publication numberOT-2026-000073458 · never reused
Internal UUID01a0ae92-efb8-798f-91ff-03996e8f5d37 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073458
StatusPUBLIC

Content hashes

Canonical text5a9b988480f21008d67648738ba9f7af01154aa8ba8fed1f637754f65de6e29c
Markdown1fb9a47336eb4c0a105ccb48e901699bac7c4e3752f172bb2538907b2e1cd150
PDF
Publication pagebf1a1f7dcdd0234cf2bc5d734e59359d2813e0a8d27f867dfdfafeb2d1260978
Manifest3113f75d475a37f78b1f54da36120823f82f4bcd52bcbd222db7d1635db6dc4a

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
SignaturejmGmVlG6KOjScRYWoE1qCLTIQFv63l8xku2hksmkl2btLOzRiYpEu//om/s9fbXNP/nHn3zLTiGsdVb0R8LPDg==
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

2026-09-17T10:21:37.355905ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073458
observed bf1a1f7dcdd0234cf2bc5d734e59359d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:37.337404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073458/manifest.json
observed 3113f75d475a37f78b1f54da36120823...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:37.317440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073458/publication.md
observed 1fb9a47336eb4c0a105ccb48e901699b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:37.299570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073458/publication.txt
observed 5a9b988480f21008d67648738ba9f7af...
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.